Hi, mapping out the set up to my 55 gallon tank. I currently have 2 aqua rio 600 submersible pumps. I am looking at the koralia pumps. Question is, will the 2 aqua rio pumps be enough to circulate a 55 gallon aquarium? I am sure that the koralia will be better, but I would like to know if I can get away with using what I already own, so I can spend more money on other things for the setup.