With all the different size korelia pumps I am lost. I have a 65 gallon tank with a flowerhorn fish and I would like to know what size korelia is rec. for the tank.
I have a 75 gallon tank and I have a Koralia 4 in it it pumps out alot some people don't like it because of the size. Other say the Koralia 3 is smaller and does the same. It all depends on how much flow you want and need in your tank.