Hey all, What do people recomend for GPH(Gallons per Hour) for a 65G Rift Lake tank? Starting one up and trying figure how much filtering I'll need. I seem to recall seeing a recommendation for approx 230 GPH for a 75G before. Right now I have a Eheim Liberty 200 and figure I'll double it up with another Liberty 100. Or should I use something else like a PowerHead with a sponge filter on the intake?