Randy's Tank and Learn Thread

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Randy Holmes-Farley

Randy Holmes-Farley

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The cooling set up is a "cool" idea (pun intended). I did something similar with heat on my reef years ago. Obviously I had to have a little different equipment used 1/2" pex around 200' in a 100g stock tank fed from my water heater through a ranco pump/controller (heat pump) back to the water heater. Did a good job with only a little bit of temp drift. Was more "efficient" in cost for operation as it was cheaper for natural gas than electricity.

I've thought about that sort of idea, but never tried to do it. Seems above my pay grade for DIY. lol
 

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OK, thanks. I don't understand how phyto can consume detritus, but I understand the idea, and plan to implement it for other reasons anyway. :)
I agree with you there, maybe it was a pod explosion, although I never see any pods in the tank. So "shrug" on my part.
 

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I agree with you there, maybe it was a pod explosion, although I never see any pods in the tank. So "shrug" on my part.
I am curious about this. I had tried phyto (green/red/yellow, different brands, etc), and different pods for months, and noticed I was having water quality issues with maintaining nitrate/phosphate, but yes my glass was cleaner. I have since stopped dosing phyto about 2 months ago, and my water quality issues have seemed to reduce but my glass is dirtier.
 

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I am curious about this. I had tried phyto (green/red/yellow, different brands, etc), and different pods for months, and noticed I was having water quality issues with maintaining nitrate/phosphate, but yes my glass was cleaner. I have since stopped dosing phyto about 2 months ago, and my water quality issues have seemed to reduce but my glass is dirtier.
I brew my own phyto and try to make sure all fertilizer is exhausted. Maybe that was the issue? You were still dosing some fertilizer into the tank?
 

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Ah, the bulkhead saga. For those interested, it's a story of high frustration with bulkheads not fitting the holes in the glass. Yes, with folks help and some bulkhead tools from Barr Aquatics and 3D printed by Beananimal, I think I have it under control. Notably, however, I've not yet filled the tank so leak tests were only with a few inches of water in the overflow. But I'm confident now.

Here's the whole discussion, and the key to solving one of the problems, aside from the special bulkhead nut tightening tools, was to get a special sized bulkhead from Lifeguard Aquatics that was just enough smaller than normal 1" bulkheads to fit through the holes. Special thanks to John Robbins for pointing those out. :)

If the 3/4 still present a problem after full leak test, I will modify the current models by solvent welding on a larger flange (basically a fabricated PVC washer) and a custom gasket.
 
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Randy Holmes-Farley

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What water chemistry testing do you plan to do and what kits? If you say Mg I quit.

lol

No magnesium testing.

This is the plan, aside from pH and salinity, and DIY alk testing once pH is set up and running:

Test kits
Salifert calcium kit
Hanna HI784 Marine Ammonia Checker
Hanna HI782 Marine Nitrate High Range Checker
Hanna HI736 Ultra Low Range Phosphorus Colorimeter
Hanna Hi772 Saltwater Aquarium Alkalinity Colorimeter (dKH) Checker® HC

For iodine testing by the Rick Mathew method:
Hanna HI-707 Nitrite LR Checker
Red Sea Iodine Pro
 
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Randy Holmes-Farley

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If the 3/4 still present a problem after full leak test, I will modify the current models by solvent welding on a larger flange (basically a fabricated PVC washer) and a custom gasket.

Thanks. I'm hoping all is good, but I appreciate the offer. I'll probably be running full flow through the system by Monday. :)
 
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Randy Holmes-Farley

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For iodine testing by the Rick Mathew method:
Hanna HI-707 Nitrite LR Checker
Red Sea Iodine Pro

The thought with supplemental iodine, which I have often been skeptical of, but see enough respected folks think it useful, is to keep it supplemented for some extended time (time of which depends on what gets into the tank when) and then stop cold turkey and see if anything apparent changes. If anything negative shows, I'd restart after a while and see if it improves again.

That stopping plan may be a bit more complicated if I am using AFR or TM A and K, but I'll cross that bridge when I come to it. I may add more than in AFR or TM A and K based on the testing, if needed to maintain a reasonable level.
 

rishma

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lol

No magnesium testing.

This is the plan, aside from pH and salinity, and DIY alk testing once pH is set up and running:

Test kits
Salifert calcium kit
Hanna HI784 Marine Ammonia Checker
Hanna HI782 Marine Nitrate High Range Checker
Hanna HI736 Ultra Low Range Phosphorus Colorimeter
Hanna Hi772 Saltwater Aquarium Alkalinity Colorimeter (dKH) Checker® HC

For iodine testing by the Rick Mathew method:
Hanna HI-707 Nitrite LR Checker
Red Sea Iodine Pro
Wow, you test a lot more than me! I guess that makes sense.

Of course we’ll need to understand the diy alk testing. Happy to wait on those details.

why test ammonia?

Why test calcium? (that’s an honest question, though I know most people do)
 
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Randy Holmes-Farley

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Wow, you test a lot more than me! I guess that makes sense.

Of course we’ll need to understand the diy alk testing. Happy to wait on those details.

why test ammonia?

Why test calcium? (that’s an honest question, though I know most people do)

In my old tank, I ended up not testing any of these (except salinity, pH and temp) for years at a time, and that may happen again, but in a new system and especially planning to use a different and perhaps less forgiving alk/calcium dosing method (AFR vs kalk), I think I want to know what is happening even if I do not necessarily respond to every value.

The ammonia testing is primarily for things in QT. Large host anemones can need antibiotic treatments when first coming in, for example, and that must be done outside the tank. It also is needed quickly enough that plans need to be in place before needing it, not after. Antibiotics, for example, plus a way to check ammonia. I'm also interested in tracking ammonia during the live rock addition process, but right now I'm not sure that I'll have a kit before the rock arrives, so will forgo that plan.

I probably will only buy tank raised or already quarantined fish, so am not planning to QT fish unless something unexpected happens.
 
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Randy Holmes-Farley

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Of course we’ll need to understand the diy alk testing. Happy to wait on those details.

I did this. It's accurate and easy if you have a pH meter:

(Reef2Reef needs to refresh the account, so its on the web archive only)

 
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Randy Holmes-Farley

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Why test calcium? (that’s an honest question, though I know most people do)

If I use AFR or carbocalcium, it will have an excess of calcium. I want to be sure that over time, the AWC keeps the calcium from rising too high. It did with kalk and should again, but the Salifert test is cheap and easy to check that. :)
 

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I probably will only buy tank raised or already quarantined fish, so am not planning to QT fish unless something unexpected happens.
The availability of QTed fish and inverts has to be the best thing that's happened to the hobby since I was last in it 8 years ago. Big +1 on supporting those vendors.
 

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The availability of QTed fish and inverts has to be the best thing that's happened to the hobby since I was last in it 8 years ago. Big +1 on supporting those vendors.
I thought so too, but unfortunately got burned.
 

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Cooling System

Was working on the cooling system the past couple of days. I won't need cooling for a while (months, I hope), but I needed to get it working before I added water to that Brute can,

Here's the setup that I have used in the past:

1. Temperature controller for cooling is needed. I previously used a fairly expensive lab one from a company called Dynasense. The only ones they currently sell are more than a thousand dollars, which is out of the question. I plan to use an inkbird wi fi model that can control both heating and cooling.

2. When cooling is needed, the controller sends 110V to a solenoid connected to the cold tap water supply. (U.S. Solid 3/4" Brass Electric Solenoid Valve 110V AC Normally Closed Non-potable Water, air, Diesel). It is normally closed solenoid that only opens when it gets power, and only stays open if power continues to flow. I mistakenly got 3/4" female pipe thread connections while the supply is 1/2", so I needed some bushing adapters to connect it. Amazon, $27.

1743164751412.png


3. I wanted to be able to close it off from the water supply when there's no reason for cooling, and to slow down the flow when I am using it, so I got a valve to put between it and the water supply. $12 from amazon. Same 3/4" mistake and so needed more more bushings, but this is the one:

1743165136277.png


4. I connected some 1/4" ID plastic tubing to the solenoid and then over to the tank. This line was actually still in place from the old days, running along the ceiling of the basement. It is insulated with the usual foam pipe tubes to prevent condensation on it when operating in summer. Note: do not trust plastic tubing connections that are 20+ years old. More on that later. lol

5. At the sump, the tubing transitions to a large coil of 1/4" OD polyethylene (PEX) tubing, 328 feet long. $32 from Amazon. Used a brass coupling and hose clamps between the 1/4" ID and the 1/4" OD. Here's the guts of the system. Most of that coil is in the bottom and sides of the second Brute can in the chain. The other thing in that can is the skimmer near the top (helps provide good flow around the coils), and a cut down, upside down laundry basket to position the skimmer at just the right depth, leaving space under and around it for the coils. Zip ties help keep the coil from getting hopelessly tangled, or worse, kinked. A kink would be a big problem, blocking flow. Laundry basket from Ace.

6. The other end of the PEX goes out through a small hole in the basement window frame just above this Brute can, and out to the yard. I use it to keep a little pond filled and to water plants all summer. The backyard slopes down some from the house, so all I need to do is have enough PEX showing (now about 10') to enter an open garden hose end, and then I can just move the hose around the yard to where it is needed most at the time. Since I would be using water for these purposes anyway, it's a win-win.

7. The reason I needed to get a trial run on this system now is that without water in the coils, I was concerned the whole coil/laundry basket setup would float and be hard to deal with when water is in the can.

8. Trial run, water comes out the outside end. Big success. No hidden kinks or clogs. But then I hear something in the furnace room. Fail. An old connection between two sections of 1/4" ID tubing has cracked and water is spraying out. After shutting things down, I managed to get to fixed. Subsequent running of the system seemed fine. I'll do more trial runs as I get close to needing cooling, but for now the coils are filled and unkinked and things seem good.

9. In operation, the goal will be to close down the valve so that the water exiting the system is fairly close to tank temp, meaning I'm not using any more water flow than needed. That also ensures that the potential for overcooling due to a solenoid failure is low, and hopefully would not be more than the heaters could keep up with. It never happened on the old tank, and worked perfectly. Another failsafe is that the tank could not possibly get colder than the tap water. In much of the summer, when cooling is needed, it's not killer cold.

I know that such a system would not work in some places where the tap water is too warm, but here it does meet the need.
@ 8 -I was surprised at the force (and the noise) that a cracked 1/4 plastic hose can put out when my RODI supply got crushed under the garage door. I have much more respect for that filter after this happened to me.
 

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I've thought about that sort of idea, but never tried to do it. Seems above my pay grade for DIY. lol
I made a chiller out of a salvage water cooler. I put coils of plastic hose inside the reservoir (that had its own cooling coils on the out side) chamber and topped that off with water to conduct heat in the chamber. I added a Ranco thermostat that turned on the water cooler when the tank got hot. I had removed the fountain basin and most of the exterior and that it was nothing but ugly and yet the tank stayed cool. It was a challenge piece, and helped me decide that a proper store bought chiller was worth the investment..

Sorry no pictures.

I can't recall how I came to have the drinking fountain?
1743208943492.png


"Almost what you see is what you get." :beaming-face-with-smiling-eyes:
 

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I have decided I really like the Jebao dep 8500 pump, but curiously, the Amazon price a few days ago was $81, today it is $115.
Blame Tariffs.

Folks who are buying imported stuff might want to search out for stores that have not marked up stuff yet. Do it now.

We are considering selling our new 2025 Car while the mark up is good.
 

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