For a 75g, 26inches tall, 350gph canister to push it. I have 2 cannister filters total. Well, I sure hope it works everyone elses does right. I spoke with someone that sells ADA and he said i'd be good with it, so I feel confident. I know it doesn't leak and I'm sure it will be fine. I pretty much just looked at what everyone was doing as far as design and I wanted to be able to clean it, so the intake portion unscrews. I am waiting for my Drop Checker now from ADA and then it is time for plants. I'm going to try the Tom's Dry method to establish my ground plants. Time will tell. I will let everyone know how it goes.