I am currently using a second hand chiller which used to be a marine chiller. Before adding to your aquarium, recommend heavy flushing through and against the flow of water. Then test with cheap fishes and let it run for weeks before you are safe to use it on ur beloved fishes/shrimps. That's what I did and my crses are doing fine.GoodLuck!
P.s. better to look for freshwater chillers to safe trouble. haha.. But if you love the hands on, then go for it..![]()
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