Before I added my anemone, my maroon clown couldn't get enough of the flow in the tank. All he would do is swim as fast as he can against it then let himself go in the current, then start all over again. Now that he's hosting his BTA though, he never strays more than 3 inches from it, and rarely at that. Kind of less exciting in some ways, but cool nonetheless. Anyways, my point is that they love the flow. I've got roughly 15000 Lph in my 75.