I just got some riccia today. I've been all happy and attempting to make a carpet out of it in my tank. I finish up and turn my filter back on and realize this is a bad thing. Bits of riccia float on the surface of my tank. I like this because I need to grow more, but it gets thrown all over my tank when it hits the output stream from my filter. Is there anything I can do short of a canister filter? I really can't afford to spend the cash right now. 