Clear slime on Mopani wood?
Okay, so, when I first got my tank around March/April, I had a really good piece of Zoo Med Mopani wood picked out. Put it in there and it had continually grown this clear slime on it. Well, that was in April and I stored it away ever since then in my closet. Dry. The other day, I put it back in my tank... and yet... This slime is.. coming back... what gives? Seriously? What do I have to do to do make this stuff go away?