- Joined
- Dec 20, 2023
- Messages
- 98
- Reaction score
- 32
- Location
- shorewood
- What state or country do you live in
- Illinois
Just looking for some help determining what this is growing on my sand bed. I noticed it goes away at night, then returns during the day. Originally I was thinking Diatoms or Dino’s, but I see no air bubbles at all, so I’m thinking cyano, but not 100% sure.
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