I'm hoping someone can help me. I just setup a new tank about a week ago. I'm starting to cycle it. I don't have any fish in it yet. I added beneficial bacteria from Seachem (stability). I added a couple of snails. I also fed the snails with some pellets. I see this white hazy film growing on the driftwood and some of the pellets is also covered with this white stuff. Looks like mold. Can anyone tell me if it's harmful or just bioflim?