In my 20 gallon I have 6 black skirt tetras and 4 zebra danios, I also have an electric blue crayfish.
I have noticed these little specs on the acrylic and I don't know what they are. They aren't algae.

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I have noticed these little specs on the acrylic and I don't know what they are. They aren't algae.


Sent from my iPod touch using MonsterAquariaNetwork app