How to successfully keep SPS Corals!

Elsa Black

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I am very new to all of this aquarium thing. Can someone please tell me how to choose a perfect coral for the kind of fishes i need to keep. Being a beginner i am looking forward to start with a small tank. Please help
 

pdiehm

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I am very new to all of this aquarium thing. Can someone please tell me how to choose a perfect coral for the kind of fishes i need to keep. Being a beginner i am looking forward to start with a small tank. Please help

you want to look for reef safe fishes. There's a lot of reef safe fish out there. That said, you could put together a stunning FOWLR tank without any corals made up of non-reef safe fish.
 

Undertaker

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I did this writeup on our local board. A little copy and paste from there:
A quick writeup with my experience of SPS corals over the last three and a half years:

SPS are finicky - at least for me they are.

"Nothing good happens fast in a reef tank" - this saying pretty much sums up my philosophy.
SPS= Stability Promotes Success - the other part of my philosophy.

Swinging parameters, high nutrients, poor lighting, lack of flow: All of these factor into the success of a tank that is trying to grow SPS. They can stunt growth, cause STN/RTN (slow tissue necrosis/rapid tissue necrosis), brown polyps, or just flat out kill them.

Parameter checks:

Salinity - I check my salinity monthly with a refractometer. If you don't own a refractometer, do yourself a service and get one. $40 in this hobby is cheap, and salinity is critical to the success of any reef aquarium. Don't rely on the swing arms - they simply have too many variables and are typically pretty inaccurate.

pH - I run a calcium reactor, and probably have low pH. However, I don't measure it in my actual tank, just my reactor. This is my preference. If anything starts going wrong, and I've exhausted all other possibilities, then I may look into pH.

Calcium - 420 all day long. You can run it higher, but from what I've read, it doesn't do that much more for calcification of hard corals. Any lower than 380, and I've seen the negative effects start to occur - lack of growth namely.

Alkalinity - I run m Alk around 9.0-9.5 dKh. This is one parameter that has quite a bit of play in it. I've seen people running 15 dKh, and people that run ULNS (ultra low nutrient systems), like Neo, typically run their Alk closer to natural seawater, or around 7 dKh. Any lower than 7, and I've experienced zero growth and STN. I have also raised my Alk too high, too fast. I did this about 15 months ago in my 75. I nearly crashed the tank, cemented the sand bed, and caused STN in my SPS for several months. I lost quite a few really nice pieces, but overall, I managed to pull out of it with pretty good luck. I have a few coral that are still recovering from the Alk spike. I test Alk weekly, or daily if/when I make adjustments to my reactor

Magnesium - I run my Mg right around 1300. I test Mg bi-monthly, as I run NeoMag in my calcium reactor.

Nitrates - I prefer under 10ppm for nitrates. Any time I go over that number, I seem to experience browning out of coral and slowed growth. I maintain nitrates with water changes, feeding only pellet, nori (for tangs and foxface), occasionally mysis, and an oversized protein skimmer.

Phosphates - I don't have a good test for phosphates (not a fan of test kits for phosphates, they just don't do a good enough job). Under .03 is great for SPS. I have the Hanna handheld meter, and feel like it does a good "ballpark" job of measuring. I mostly go by the amount of algae and overall color of coral to "feel out my phosphates".

Trace elements - I don't dose anything - unless I get some phyto donated :) Other than the calcium reactor, I don't manually add any chemicals to my tank. I've tried them, and haven't had great success with them, so I've reverted back to skimmer and water changes only.

Other factors

Lighting - Another factor that has a lot of variance in it. I've ran MH almost my entire SW experience, from 175s to 150s to 250s, to T5, and eventually I'll be LED. All have their drawbacks, and all have their advantages. 175s probably have the lower advantage, IMO, as they are single end only. When I was running them 7 years ago, all they really had were spider reflectors. They've since came out with some really great SE reflectors, some that rival the best double end reflectors. 150s are great for shallower tanks, and have a great advantage of lower heat. 250s are great for faster growth, but the tradeoff is more heat output into the tank. I've experienced about a 4 degree increase in temperature since I've upgraded tanks. T5s work equally as well as 250s in my experience. The growth is the same, but the colors are much better! I'm building out my LED light in the next few weeks, so I'll be able to see how that goes as well. Lighting wasn't the only factor, but it does play a big part.

Flow - This topic has many variables as well. Throughout this hobby, there are several things that people do differently. You just need to find what works best for you, and you are comfortable with. For flow, I run a closed loop (3600gph), two powerheads (2100gph & 800gph), as well as my return of about 900gph, along with an MP40 Total that up for about 10000gph through my 120. I've been contemplating adding another vortech or two, but the cost on those seems to be my limiting factor. Other than the price, I don't see a downside to the vortechs.

Skimmer - Get the biggest skimmer you can afford! This is an integral piece of equipment to success for SPS. A skimmer that is too small for an SPS system will cause nitrates and phosphates to spike. This can cause SPS to recede tissue or RTN/STN. They can also brown out or just completely die. Skimmers are very important. Don't skimp!

Bioload - I prefer to run a very light bioload for SPS tanks. This helps reduce the amount of nutrients going into my system, which means I don't have to pull as many nutrients out. I keep two clowns, a yellow and blue tang, a foxface, and a wrasse. I'd probably be okay adding a couple more fish, but they would be small and add very little to the bioload. I will eventually trade the blue tang in for another once he outgrows the tank.

Quarantine - I am living with AEFW, so I can't say enough about this. You MUST QT every coral. I plan to run numerous frags through my QT once it is set up and then into the frag tank they will go. Once I have backups of everything, I'll dose the main tank with Levamisole. Not QTing is playing russian roulette. I dipped everything before it went into my tank, and that clearly didn't work. So set up a QT and learn to use it!

Overall, I'm very pleased with my transition to a nearly all SPS tank. There have been several struggles, but they have been great building blocks over the last couple years. I look forward to the future advancement of technology and equipment to help make SPS tanks more "user friendly".

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Let me start off by saying your tank is beautiful. I was wondering what your thoughts on running gfo? I've been in the hobby a few years and am about to take the plunge into sps. I run gfo through a reactor. I have gotten it dialed in pretty good. I only use 4 tbs using brs calculator which calls for 17 tbs in my reefer 350. It took me about a year to get it dialed in where my phosphates are stable at around .03. But, they are pretty stable and have been for around a year now. I do use the Hanna checker to test them. I was using the low range but have resently switched to the ULR.
 

w2inc

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This tank has been up and runnings since February 2017. The rock had been established in other tanks. Some of it was a years old and others were months. There were a couple rocks straight from the ocean. The sand bed was out of a high phosphate crashed tank. I rinsed it out before I put it in. It is about 2 or 3 inches deep. There was mud and some weeds in the back corner from the Mission Bay. (Pacific) 10 gallons of the water was out of the ocean and it was 60% filled with ocean water from the local aquarium that pumps it through some kind of a filter before it gets to a tap for public use. From Feb till about September it was home to a pet octopus harvested in northern San Diego. We kept old reef lights on it during this time and the pod population grew.

The octopus lived with us for a little over a year, not really sure, at least two seasons with a chiller before we sent him to a better place.

Phosphates were pretty high and there was Cyano on the back wall. There were Malaysian clams living in the sand that were left over octopus food. I dumped some non scientific amount of swimming pool quality Lanthanum Chloride in the tank and the levels went to undetectable on my Salifert test kit.

The skimmer was an old euroreef with 2 cobalt needed wheel pumps on it. Not really any to quantify the flow, but it seemed to skim well. (Switched it yesterday for a reef octopus 150 with a controllable dc pump.)

The tank was fallow for about 6 weeks? During that time I manually dosed calcium, magnesium and sodium carbonate to get my parameters where I wanted them and make sure they stayed. We added a Caribbean blue tang and a Scrawled Cowfish to test the water. Then we started adding frags from our starter tank that was now around 16 months old. (Dates are very approximated.)

The tank is 120g with a 30ish gallon sump.
I generally shoot for:
ALK; 9.5 - 12 DKH
Cal; 450
Mag; 1400
Nitrate; close to 0 (on salifert)
Phosphate; close to 0 (on salifert)
1.025 salinity
76 degrees F
12x water volume turn over through the sump per hour.

I landed on my numbers pretty arbitrarily. The back of a business card I got at MACNA in San Diego, the label off of my salt mix and the ambient temperature of my house. Well, that combined with what I could remember from keeping a reef in the 90's.

My reef in the 90's used Kalkwasser and the high pH/DKH seemed to pay off. I use a calcium reactor now and I prefer the high DKH for help keep my pH up. I have had the least problems with my tank when I am over 9.5 DKH. Unfortunately the business card I found recommended phosphate levels >.2 ppm, and that is high enough to scare me a little. Phosphate gets blamed for too many tank crashes. I am just more comfortable keeping it low until I get some peer reviewed research on it.

For this reason I had to resort to the PO4 recommendation chart on my salt mix bucket. When I do change water, I use the Red Sea salt mix. The bucket says less than .03 PO4, and that is what I want to hear. I they have made great products like skimmers and tanks since clear back to the 80's. I went with the black bucket line because of the graphics. (It is the same way I choose my wine.) I think that their aquarium building skill in no way reflects their ability to mix salt. Instant ocean was more affordable and I used it for a long time but I have a degree in art and I feel like the graphics on their bucket are borderline offensive. If Tunze made a salt mix with better graphics than Red Sea, I might use that since I like their pumps and skimmers.

Some times I just throw caution to the wind and use ocean water since I live 5 miles away from it. There just isn't any compelling data that I could call Proof that one is going to be better for my coral or my system than another. Some are closer to where I want my levels to be than others and it makes life easier. With my once every two or three years water change schedule I am not sure that it would matter how good or bad the salt is.

Circulation is 2x mp-40 blowing across the tank in anti sync from each other on upper front of the side walls. 2x mp-10 mounted on the back edge of the right side wall. They are always on at 90%.

Light is Radion. G4pro. Two 30's and two 15's. I did some research before buying them and felt like they were the best for me at the time. I have not considered non LED options. I have used the others in the past but I think I just love the tech. The light is on about 10 hours a day. There have times when it was on for 12. I normally have a ramp up time of primarily blue light for two hours and ramp down for two hours. I use a corral lab preset in mid day and just blue, purple, white and 1/2 red on the ramp portions. I am currently running the lights at 70% on these settings and the highest par value is 550. Lowest is 110. I have run them brighter and better color seemed to coincide but there are always other variables so I cant point directly at PAR.

I really cant remember which coral got there first. You cant guess based on size. They all came in as frags the size of my the end of my little finger. About three of them were the size of a car key. I have some that are still the same size a year later and others that earn me a few hundred a month in frag sales and trade. The tank kills clams as a general rule. I am sure that there are still one or two Malaysian clams in there. There is a Derasa clam that has beaten the odds. Maximas will look good for a while, inevitably they fall off the shelves and are dead within a day of hitting the sand. We are pretty sure there is a predator in the sand bed.

Fish, 20 springeri damsel, 1 dragon face pipe, Scopas, Mimic yellow, Lavender tangs. Couple pair of goby, 2 barnacle blend, 4 red firefish, 4 purple firefish, yellow spotted wrasse, Pair of green mandarine goby, 2 breeding pair cardinals, Green wrasse, sixtine wrasse, copper band butterfly, and some others that I cant think of. The barnacle blennys are the only fish that are male and felmale that do not breed on a regular basis.

More than 30 various sized hermit crabs, more than 20 emerald crabs, two fire red shrimp, one cleaner shrimp, 8 Acropora crabs, bunch of Trochus,and nerites (they breed a lot), 10 turbo snails, 10 ? astria snails, 20+ random snails.

The tank is on an auto feeder that dumps much more food than the fish can eat in 10 minutes twice a day. I have not really focused on one specific kind of food other than usually more pellet than flake.

I make an effort to not impact my plankton population. No filter socks, or traps. I use propeller pumps, Main drive pump has a design that seems to do less damage than the pumps of the 90's. I believe that the microfauna population is one of the keystones of my system. At any given time I can pull half cup of water out of it and see things moving around with a magnifying glass. In the night it is even more dramatic. My cardinals spend the nights constantly feeding on whatever comes out at night.

The sump grows Chaetomorpha. (At my house we pronounced it Keeto because we pronounce algae as al-gee. Strange scientific latin derivatives.) We modeled the system based on the "Dynamic Aquaria" book from the 90's that is basically all about algae turf scrubbers. It is our main source of nutrient export. I believe it works as a giant buffer for fluctuations in my system. I have a 150 watt purple "grow light" from amazon on it. The more I feed, the faster it grows. There seems to always be some level of PO4 and often no Nitrate. I have tried supplementing nitrate, but I would prefer to just feed more often. It is not a perfect science. The tank is over crowded with fish and I see some stress from it.

I use GFO. I use little and run a 1/4 cup charge for about a year. I have turned off the skimmer and pulled the GFO on my other small reef, but it has only been 6 or 8 months and I am still waiting to see if I am ok with it.

I have tried to work out some kind of scheduled maintenance on the system but things just kind of work on their own. I am sure that I clean the skimmer at least once every 9 days, but I dont clean it unless it has got liquid in it and normally the neck is coated with 1/8 inch of sludge.

I harvest Chaeto when there is no room for it in the grow area. It is lit reverse daylight from my tank and runs 16 hours. It does make a dent in the pH drop at night, but not a big dent.

I generally hate testing my water. Normally it is about 3 days after I have decided that I need to test before I actually do it. If I find a problem, I normally correct it pretty quickly. (2 or 3 days) During any correction I test a least daily but normally am and pm. I recently got an apex, but before that I used a Seneye. It would text me when temp or pH was off. I think it is important to have some kind of live monitor on those 2 things.

I run a calcium reactor. I like the idea of it. It puts minerals and organics back into the water in the proportions that they came out. I run magnesium at a 1:10 ratio with crushed coral from 2 fishes. Research says all suppliers are different. Since that one worked for me I will just use it as long as it is available.

I check my ALK 2x a day when I have made an adjustment to the reactor or drip rate. When things stabilize, 2 days later I cut the test frequency in half each time I see the same level with 2 consecutive tests.

The system never had an intentional water change until this week after a one month period of troubleshooting tissue loss on random corals. I gave up and just started diluting the problem until I could get more information. I use ICP testing as a snap shot of what is going on when the tank looks good and bad. I try to have one test per quarter with some notes and photos. I have some corals that are always the same colors but I do get dramatic shifts in some when I change lighting, food, or GFO.


My tank looked best here (if it looks like a frag, I probably got it as a stick.)
//lab.atiaquaristik.com/share/7d9605e7a3bda51bceb4
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And here
//lab.atiaquaristik.com/share/6119d18b9a1c9cd255be

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joe berkman

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Thank you to every contributor of this thread, your tanks are spectacular and insperational. your insights and shared experiences are apreciated.
 

Guttersnipe

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Aquário 1000 litros total

Iluminação ATI 2 calhas 4x80w
Skimmer nyos 220
Bubble mahus
Reator de cálcio Bubble magus cr180
Dosadora Bubble magus bm01
Ozônio cubos 2000
Co

Fotoperiodo 10 horas full

Dosagem

Tempo de montagem 5 meses

Colônia maiores com mais de 1 ano no aquário antigo

From online translation:


Aquarium 1000 liters total

ATI Lighting 2 gutters 4x80w
Skimmer nyos 220
Bubble mahus
Calcium Reactor Bubble magus cr180
Meter Bubble magus bm01
Ozone cubes 2000
Co

Photoperiod 10 hours full

Dosage

Assembly time 5 months

Greater colony with more than 1 year in the ancient aquarium



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Is there really only one powerhead for this tank?
 

Sailfinguy21

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Th3 only sps i havent been able to keep is a yellow porites.... i have spent 60$ on a big frag like 3 inchs long and 2 inches wide.. snd it slowrly browned out thrn got covered in algae.

I got a new peice the other day so im hoping itll do better.. i have it in the highest point in my tank like 3 inchs from the top.. and in really high flow.. since i read yellow porites need really high lighting and get crashed with waves in the wild..

So well see
 

Nanoreefboi

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Th3 only sps i havent been able to keep is a yellow porites.... i have spent 60$ on a big frag like 3 inchs long and 2 inches wide.. snd it slowrly browned out thrn got covered in algae.

I got a new peice the other day so im hoping itll do better.. i have it in the highest point in my tank like 3 inchs from the top.. and in really high flow.. since i read yellow porites need really high lighting and get crashed with waves in the wild..

So well see

Just remember not to overdo it with the flow. Also too much light is worse than too little
 

Sailfinguy21

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Just remember not to overdo it with the flow. Also too much light is worse than too little


They arent blasted directly. i have a koralia 1500 and 1150 on oposite ends of the tanks mounted midway, pointing up at the surface but going towards the middle of the tank.. the flow hits eachother in the middle causing flow in the tank to go down in the middle and back to the other sides if that makes sense ? The acros are where the flow meets in the middle and goes down so it has indirect flow. But Porites are just really hard to keep for me for some reason
 

DEWreefing

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I have never changed water in this tank.

I have a 180g tank,
lighting 4 black box led 165w W/ T5 retrofit kits
Cal 460
Alk 9.5
Mag 1450
No3 .40
Po4 .030-.050
Dose 35 mils of reef fuel twice a week
Calcium reactor for 450g
I have 4 jebao pp-20, 2 jebao wp-15, 2 nyos wav

My poor clones are always being chopped back to mini colony's for friends.

Yes it was a hot day used a fan to cool down tank
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RyanHoan

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Hey all,

I generally have "OK" success with SPS. My walt disneys, montis, and other green sps are doing well, have great polyp extension, and slowly growing. However, i noticed that any of my red or pink sps seem to fade out to tan/brown and don't grow at all in my tank. Their polyp extension is never great either.

Can anyone guess why these colors don't do well? I do weekly 10% water changes, so I don't think it's an micro nutrient issue.

params are normal, but I don't test for iron, potassium, etc.
 

DivingTheWorld

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What makes our tank started October 2014 successful with SPS?

A few things that may contribute:

Clean Start - We started with 100% dry rock and have been as careful as possible with all coral additions. Over the years we've got a few algae pests like Bryopsis and Bubble Algae but were able to take care of them successfully. Starting with 100% dry rock has allowed us to keep out (IMO) pests like bristleworms and other creepy crawly's. I use nitrile gloves anytime I put my hands in the tank. Who knows what I get on my hands throughout the day so I think this helps prevent poisoning the tank. We also never use any harmful aerosol chemicals in the house.

Lighting - We started with 2 Radion XR15 Pros. After a couple years I concluded that it was not enough light. Options were $1500 for a pair of XR30's or sell the XR15's and move completely to T5. We chose the later which was essentially a wash sale. Current lighting is an ATI Dimmable T5 with Reefbrite XHO Blue. Bulbs are 4 B+, 2 C+, 1 P+, 1 Actinic (all ATI). We switch the bulbs out every 6 months. Lighting schedule is 12 hours per day. Reefbrite comes on for 1 hour, then 2 T5 bulbs for 1 hour, then all bulbs for 8 hours, then back to 2 T5 bulbs for 1 hour, Reefbrite for the last hour.

Dosing - I have considered a calcium reactor, but I feel our tank is just too small to justify. Our stand is absolutely stuffed as well so I'd have to put it next to the stand which would be ugly. So we use 2 BRS 1.1ml dosers run by our Apex. We have a dosing program split into two periods, 10pm-10am and 10am-10pm. I know from experience that corals suck Alk/Cal more during lights on than lights off, so this helps us dial in a more even level throughout the day. We dose every 30 minutes 24/7.

Return Pump - We've been through a couple Reef Octopus RODC-5500's, but they didn't last. Currently we're using a Vertex V6. Great pump and I wish I had snapped up another before they were discontinued! Return water flows through a manifold which diverts to two reactors, then splits into two 3/4" returns, each split into two 1/2" loclines in the tank. This allows us to aim each of the 4 outlets towards particular areas of the tank.

Flow Pumps - We run two MP40QD's. They are each on the back wall, lower corners running at 90% Reef Crest, Anti-Sync 24/7. This allows for tremendous random flow throughout the tank without any flow directly hitting any corals. It also gets them out of view which I love.

Skimmer - We run a Reef Octopus POV-DC1. It was a very expensive skimmer, but after a warranty upgrade to a new pump and adapter after the first year, it's run like a pro for the last 5 years. With the upgrade, it's now essentially an Elite 150SSS. It sits on a Reef Octopus adjustable skimmer stand which allowed us to dial in the height.

Supplement Filtration - The only other filtration we run is 2 BRS deluxe reactors plumbed off the return pump. One has 4 Tbsp Rox 0.8 Carbon and one has 8 Tbsp HC GFO, each switched out once per month. We offset these changes by at least one week.

No Socks - I firmly believe removing socks has allowed our tank to have more complete biodiversity and helped maintain a good pod population. We have never added pods to the tank.

Bare Bottom - We sucked out the sand at about the 1.5 year mark and never looked back. Water changes are now a breeze, we can run as much flow as we want and just suck out any detritus during the water change. IMO it also allows us to maintain Nitrate/Phosphate more easily.

Water Changes - We do 10g 1x per week. I mix up 40g at a time using regular IO to 1.0264 and adjust the parameters to what I want. Alk 7.5. Cal 400, Mag 1450-1500. If Cal or Mag mixes higher due to a random batch of IO, I don't sweat it. But Alk is always adjusted to exactly 7.5. Water is adjusted to match the tank just prior to each change. The rest of the month it just fluctuates with the garage temp.

Fish Food - We only feed the fish. We feed a mix of frozen in the morning and NLS Pellets in the evening. Frozen is a mix of Hikari: Bio-Pure Brine Shrimp, Bio-Pure Spirulina, Bio-Pure Mysis, Bio-Pure Ocean Plankton. We do not feed any other food, period!

No Additives - We do not add any other chemicals to the tank, no coral supplements, no nitrate, no phosphate, no aminos, nothing! Any elements (Iodine, Strontium, Iron, Potassium) are replenished through weekly water changes.

Fish - One of our biggest keys to acro success is A LOT of fish. Our tank is 80g, 89g system est. volume. For fish we have in adult sizes:

1 Blue Tang
1 Banggai Cardinal
2 Picasso Clowns
1 Black Cap Gramma
4 Lyretail Anthias
2 Green Chromis
1 One Spot Foxface
1 Spotted Mandarin

Cleanup Crew - We have a limited, yet specialized crew:

6-8 Giant Turbo Snails - These are the workhorses!
Colony of Banded Trochus Snails - These bread in the aquarium so always keep healthy numbers.
2 Fire Shrimp - Mostly for the kids, but help grab big stuff.

Parameters -

Salinity 1.0264
Alkalinity 7.5
Calcium 400
Magnesium 1395-1425
Nitrate 4-6
Phosphate 0.03-0.05
pH 7.8-8.2
Iodine 0.05-0.06

Testing - I think another key to our acro success is lots of testing. In my research of highly successful acro tanks and dealers, they test often, especially Alk. So here's what I test:

Salinity - Once a week, 24 hours after my water change with a Tropic Marin High Precision Hydrometer. I also monitor with my Apex Salinity Probe, but IMO that sucks.
Alkalinity - Once a day with a Hanna checker, plus 4x a day with an Alkatronic. The Alkatronic is mostly for my vacation piece of mind, but sometimes I get lazy and don't use my Hanna for a few days.
Calcium - Once every 1-2 days with Salifert
Magnesium - Once a month with Salifert
Nitrate - Once a month with Salifert
Phosphate - Once a month with a Hanna ULR Phosphorous checker
pH - Once a month with Red Sea, plus throughout the day with my Apex. My Alkatronic also checks pH.
Iodine - Once a month with Red Sea

I think that sums it up! If you have questions, please feel free to direct them to our build thread. I'm an open book and have no secrets! Oh, this is what our success looks like:

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Travis Wagner

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Hey all,

I generally have "OK" success with SPS. My walt disneys, montis, and other green sps are doing well, have great polyp extension, and slowly growing. However, i noticed that any of my red or pink sps seem to fade out to tan/brown and don't grow at all in my tank. Their polyp extension is never great either.

Can anyone guess why these colors don't do well? I do weekly 10% water changes, so I don't think it's an micro nutrient issue.

params are normal, but I don't test for iron, potassium, etc.

Did you have any success looking into this? I have the exact same issue and haven’t discovered any solution as of yet.
 

RyanHoan

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Did you have any success looking into this? I have the exact same issue and haven’t discovered any solution as of yet.

Hey Travis,

must been a busy few weeks, and I’ve been neglecting my tank. Funny enough, my cherry bomb, pink and red Millis, and red tables are all looking great and more colorful. Just tested my nutrients:

Phosphates 0.08
Nitrates 15
Alk 7.5

who knows why they’re looking better tho!
 

A worm with high fashion and practical utility: Have you ever kept feather dusters in your reef aquarium?

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