03-14-2015, 05:29 PM
Join Date: Nov 2012
Location: Levittown, Pa.
iTrader Positive Rating: 100%
| | Re: Koralia Circulation Pumps
The 425 gph koralia I believe would give me enough flow and current to make my plants move. This would tell me that the nutrient content of the water will get to the plants without fear of dead spots. but these pumps are overpriced. I looked at the video a member uploaded of his 425 gph in his 115 gallon tank and it was moving a val which was about in the center of the tank. So I reasoned that two 240 gph Koralia circulator pumps placed on each end would satisfy me in my 75 gallon tank. I was wrong. I tried to reason with the distributiors of Koralia but got nowhere. Now think about this: Their company video shows this pump about an inch below the surface and that is how they judged it's gph. But I say if you lower it 6 or more inches below the surface, then the propeller of the pump bears some of the weight of the water. Then it does not give the rated flow which forces the purchaser to upgrade at an additional expense for a stronger over priced pump or use another manufacturers pump.
Right now, I am using two "Seio" circulation pumps that are just 26 gph more then the koralia 240 gph and they are performing as expected and they are 6 inches or more below the surface. The koralia pumps are designed for wave making and they do not give the rated flow below the surface.