What does this mean

[Reefmonkey]

Originally Posted by jcarlilesiu

sounds to be like a protein build up and the effects of protein on the glass. Up your water changes (which may have a slow down effect on your cycle) or skim the top of the water with a clean unscented paper towel. Protein build ups are a pretty common occurance.

Wow, I thought I was the only one who used paper towels for that.