Hey all, oddly enough this post isn't about my fish, but my tank. It seems to have an odd film on the surface of the water, which isn't allowing many air bubbles to get through, it also let's snails crawl on the underside of the surface of the water! I'm not sure if this is bad, normal, or what. The only thing I've added recently is some brackish salt for my guppies. Any ideas what it is?
I wonder why tough corals are called hammers, and weak corals are called buttons...