water change

So I did a water change but had a little mishap with my ATO staying siphoned on and adding too much freshwater to the system (about another 3 gallons to my 90-ish gallon system). I thought it wouldn’t be a really big deal if I just gave it a few days to evaporate out and get back to the correct...

Hi guys, I’m new to the forum and the hobby. I have two sons who are absolutely obsessed with corals and saltwater fish so finally decided to get one and once looking into the hobby I have fallen in love with it aswell! I just wanted to confirm the weekly water changes are done with salt...

Hello all, I have a 10g fairly new tank. Worry not everything is cycled of course but I started noticing orange patches here and there on my sand. All levels are within normal ranges so I have no idea what this might be, but then again I still consider myself a beginner and I don’t know much...

Less than a year old Kamoer X2SR water change pump 325$ ship.

I am cycling the dry rock with some live rock (cooking in the dark) it been 2 weeks and no ammonia and no nitrites. My NO3 is over 75 what is normal. No fish and it will cook for 3.5 more months. Normally it says i should do 50%WC, but sense i have no livestock there, i don’t expect it will go...

So I just got home today to find that my fairy wrasse had died but this isn't what my question is about. Should I now do a water change to avoid an ammonia spike? I removed what was left of the carcass but it looked like my snails and crabs had been eating it for a few hours maybe. I did a water...

I buy water from a local store and just found out it’s collected from the sea. I used to keep it for around 2 months in a container in the dark with no circulation. Never smelled bad so i didn’t assume it was spoiled, but now i worry there are no nutrients and it doesn’t benefit nothing in my...

Hey guys, I’m back to share my turmoil and maybe get some support again from you all. My tank was doing great after my last post regarding treating my tank with copper and raising salinity. I had done a few water changes after my copper treatment and copper was down low to a 0.69 ppm. All the...

I mixed up a batch of water for a water change last night and then decided i was going to do it in the morning instead. I woke up and started changing the water in my tank (50g water change on 500g). It was a little dark so i didn't notice sooner but it looked like the new water coming in was...

Hi I’m new to mixing my own salt water. I use redsea coral pro. I do a 10L water change every week. I follow the recommended 38.2g per litre of RO water, so for my 10L water change I would require 382g. I test salinity around 1.5 hours after adding the salt to find I have a specific gravity of...

I have a Waterbox Frag 145.5. I have not set it up yet. I am planning on having 5 fish: Regal Tang, Yellow Tang, Purple Tang and 2 clownfish. I currently have a Waterbox 25G and I do a 20% change every 7 days. My question is.. with my new tank (145.5) stocked with the 5 fish, how often should I...

I bought this used 3-4 years ago and never got back to setting up a larger tank. Wanted to do automatic saltwater exchanges to get away from dosing. The litermeter still has the protective covering on the face.

So I just finished my first water change, but I'm about 1.5-2 gallons short of new fresh saltwater. My current salt is reading 1.027 with a refractometer. Can I just add 1.5-2 gallon of RO/DI fresh water to make up the difference or should I mix 2 gallons which is what I'm in the middle of now...

So in a continued effort to understand what's in my City Water and what poses a potential risk and would need to be filtered and treated for a tank (Fish Only With Inverts), I found my local plant water quality report, and am curious from others who have more knowledge than me, how good (or bad)...

So I currently have a IM 50 gallon AIO. A 10 gallon, 20% water change is quick and easy on a tank this size. However, I’ve already run out of room and am planning an upgrade. As I was considering a size, one question stuck with me: Should I pick a tank size based on the size of water change I...

Hi, I use RO water, perform bi-weekly water change. I notice green algae on the rocks right after my water changes. The RO filters are 3 months old and not fully used to their capacity. What I did notice was, if I don't change the water for 4 weeks the water was relatively better than 2 week...

So being from Australia, I know the need not to waste water, and I had a random idea that came to me last night and wanted to see if people do it or can be done. I have a 500-litre system, and when I do a water change, I normally have the hose down the drain and off to where ever it goes, but...

I’m sorry if this is a “common sense” question, but I want to make sure that I understand everything correctly before I start up my tank. I’ve noticed that when people talk about doing a quarter or third of a tank water changes they do it from and to the sump. Is it correct to assume that you...

Hello, R2R! I'm in the process of standing up a new Reefer 250 v3 system this summer and as its in an office, I don't plan on doing regular water changes with all the investments I've made. I have an Apex EL system and multiple DOS, Trident, ATKv2, FMM with various modules and sensors, 1Link...

Hello! trying to help the tank recover from a skimmer that broke and wasn’t working for 2 or 3 weeks. Everything looked great so I didn’t test ( I’m kicking myself ) while I figured out how to get it running again. Frogspawn started looking a little depressed this week & I just got the skimmer...

Hey all Thought it would be a good idea to share what I've done to create my auto water change system! I've used the Arlic grid connect for all the control and have level switches to limit the volumes of water being moved. I've currently got it set to run once a day at 5pm and changes out...

Another question that has been beat to death over the years, I know….but I haven’t really heard of it keeping up with the times. In previous tanks (pre Rollermat) I was religious about my water change percentages (I started with 10% weekly manually and graduated to 1% a day when I setup my first...

What Do You Guys use to keep your water Crystal Clear?

Hey guys! It's me :D If you have to attend to other fish hobbyists that are having emergencies or something, go ahead xD But what I want to talk about is how much do I change water. I have a kind of small tank, and I want my fish to have the best way of life possible, so I started feeding them a...

Is there any reason to do water changes other than nutrient control? My tank has been doing really well with no water changes and staying consistent. phosphate at .05 ppm and nitrate at 20 ppm. I’m dosing all for reef that covers major and trace elements. It feels weird not doing a water change...