I have two koralias (1400s I think) in a 6 hour alternating mode (with the koralia "wave" controller) in my 72x18x18 tank. I find that it works pretty good. I've thought about putting a tiny powerhead in the back on the tank.
Are tunzes way better? They are a lot more money. Is getting a push pull action also worth it? I've got some begginner sps and softies.
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