DancingBetta Fish Crazy Joined Nov 4, 2020 Messages 352 Reaction score 271 Points 63 Location Virginia Nov 5, 2020 #1
Colin_T Fish Guru Supporting Member ⭐ Joined Jan 26, 2008 Messages 41,873 Reaction score 26,331 Points 113 Location Perth, WA Nov 5, 2020 #2 Just green algae growing on the glass. Use a clean soap free sponge to wipe it off. Some people use a plastic credit card to scrape it off too. It's nothing to worry about.
Just green algae growing on the glass. Use a clean soap free sponge to wipe it off. Some people use a plastic credit card to scrape it off too. It's nothing to worry about.