I recently bought 2 koralia magnum 8 circulation pumps for my 240 gallon fowlr tank. i believe there is too much flow in my tank from these pumps. a good friend of mine suggested 4-koralia 4 pumps. i believe this to be good sound advice but i was just curious to hear what others opinions were. i will be replacing whatever pumps with 2 mp40's in the near future just dont know how near. so i am looking to see what i could get bye with until then. all suggestions would be greatlly appreciated