I would guess that the one you have on there now will not be enough. I am setting up a similar 30 gallon demasoni tank. I have 1 AC 70 and 1 older AC 50? I am not sure that I have enough either.JLui83 said:I'm using an Aqua clear HOB filter for 10-30 gallons. I have a 29 gallon. Do you think this is enough to house 14 Demasoni? The demasoni are still in FRY form. I was thinking of adding another Aqua Clear 10-30gallon HOB or just getting one AquaClear 20-50Gal HOB.