making a homemade aquarium chiller, need my tanks to stay

>>1215373
Peltier Thermoelectric Module.

Apply DC power and one side gets hot the other gets cold. You'll need a heat sink for both sides. Put the cool side in the water pump flow and perhaps a fan on the hot side. Add a thermostat to it and you are golden.

>>1215394
https://www.youtube.com/watch?v=tnKlIc6oCCg

but aluminium toxicity

>>1215395
https://www.youtube.com/watch?v=zJWWpokFoQM

>>1215399
A heat sink can be anything that conducts heat well. You can also paint an aluminum one in a pinch then cure it properly.

>>1215399
you could use a secondary heat exchanger in the chilled water connected directly to the aquarium. aluminum and copper are about the best conductors of heat tho.

>>1215399
take the plastic tube thing of the pump and twist it arround the heat sink. But keeping at a constant level requires some sort of control. Try looking for on off control

>>1215373
A cheap ass pump and a water cooler hooked up to thermostat? Can pick up a water cooler dirt cheap used. If you don't want to cycle fish water through it maybe just a coil in the tank.

>>1215468
you know that this isn't enough if room temps are above 17°C right?

>>1215470
I'm not sure what kind of cooling those things can handle tbhfam, no idea what size his tanks are and what ambient temp is.

>>1215476
And there's a few guys out there that I've seen convert then for controlling fermentation temps for home brew, which is why I suggested it.

>>1215373
Couldent you just put the fish tank inside of a refrigerator with a glass door?

>>1215476
I think there was miscommunication between us, as I come from /g/ I automatically presumed you were mentioning a basic cpu watercooling unit, that by design can't go lower than roomtemp because the liquid is cooled passively, and not actively by a peltier module.

I'm sorry for the misunderstanding

Interesting, what for?
I'm thinking not that Axolotl, they can be at 25-28

>>1215501
Ah cheers