Is there such a thing as too many filters? I'm going to be getting a new tank stand tonight so my 2 ten gallons can be next to each other and on the same level. Then I'm going to set up a canister filter and siphon system to filter both tanks, but while the canister is building up its bacteria colonies, I'll still be running the HOB filters that have been on the tanks. Is that too much filtration/current? In the tanks I'll have 3 guppies and 3 platys.