Originally Posted by
Don in Virginia
They will float until they become waterlogged. You might as well just put them in the tank, and weigh them down somehow. They will probably turn your water yellowish, and they may get fuzzy for a while until they get saturated. That's what happened to mine from the same source. I don't think washing them before putting them in will do much, but you can rinse them off, sure. I've had mine for about a couple months now, and have to take them out every two weeks to hose off the fuzz. Changing water will take care of the yellowish water. After a few months, things should stabilize. HTH.