HI all, have a question regarding filtration. I'm working on my 65 gallon, and will be putting two Marineland Penguin 350 Filters on it. I will be stocking with small fish, one type being Hatchetfish that don't care for too much water flow. So, with these two filters I have (I think) more than enough filtration. The filters do have flow adjustment and I will be turning the flow rate down to keep the fish happy. My question is, all filters are rated GPH on flow rate, is this based on being turned all the way up? If I turn down the flow rate will it reduce the filtration rate as well? If so, is there a good way to fix this issue without increasing the water flow rate into the tank?