The friendliest place on the web for anyone with an interest in aquariums or fish keeping!
If you have answers, please help by responding to the unanswered posts.
Probably cyano. This is common amonst new tanks that are still high in nurtients. You can use a hose to syphon the slime out of the tank. Feed less and increase your frequecy of water changes and the cyano should go away by itself over time.