It's normal for new wood to develop a white cottony film. I'm going through it now with mine. It's unsightly but not harmful; wipe it off or leave it, it's up to you. It'll go away in time. Not sure about the stuff on the glass though; could be something similar. Cycling with fish food can be fairly messy as the food decomposes and it isn't very accurate in terms of keeping ammonia levels as high as you'd like them to be for the cycle. If you ca
get some pure ammonia that would be a better route. Or at least put the fish food in a mesh bag or clean nylon stocking so it doesn't mess up the whole tank.