Is it ok to rinse or spray my sponges/floss with tap water? I know I'm not supposed to do that with the biomedia so the bacteria doesn't get killed, but what about the sponges? I tried cleaning them in the tank water but that doesn't do the trick. So this time I just rinsed half of them with the spray nozzle in the sink and did the best I could with the others in the tank water. I'm using a Fluval 306 by the way.