What is overtaking my tank?

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bubbles10

Aquarium Advice Apprentice
Joined
Aug 4, 2011
Messages
33
Location
North Carolina
This has been growing in my tank for a while now, but I'm not sure what it is? It doesn't wipe off - I have even tried using a toothbrush to scrape it off, but that doesn't work either.. it's almost like whatever it is, it is gripping onto everything. It is definitely multiplying and is now starting to grow onto my plants, decorations, and air tubing. It looks very similar to the common "moss ball" but I don't have one of those in my tank, so I'm not sure where it would have come from.

I figured it wasn't a type of algae since it doesn't wipe off - what is it? Will it harm the fish? I would assume not since it's been in the tank for a while and my fish are still alive.....
 

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