Quick question on water flow/current. I'm using an Aquatop (Perfect, SunSun, think a few other brands) CF-400 which is rated at 370 GPH and is producing a little more current then I think I'd, and the fish, would like. This is in my 40 gallon breeder. I have the spray bar positioned on the side wall (so water moves right to left, rather than back to front) with it positioned just below the surface, angled up at about 45 degrees. The current moves in a circular pattern, moving towards the spray bar along the back of the aquarium and away from it along the front. I've also tried drilling the holes a little larger which did help a bit. It's not so strong that the fish can't move about without being blown around, but if they don't actively hold position it will move them around, make the plants wave about in the water a bit, etc. There are some spots they can rest but they are near the bottom almost right under the spray bar, and as I add more fish that could get congested. Am I worry to much and this is fine normal current? My only frame of reference is my 100gph Penguin HOB on my ten gallon which doesn't move anything around at all unless it's right below the outlet so maybe I'm just over thinking this. I can try and get a video if that helps, but it'll just be a cell hone vid so not the best quality. So, thoughts? Just leave it be? Drill even bigger holes? Something like this- http:///ViaAqua750CanisterFilter.html#ballvalve and if so I imagine I'd install it on the outlet?