- Joined
- Jan 13, 2020
- Messages
- 41
- Reaction score
- 19
I bought a recent tank from a individual that I set up for a reef. It’s been up and running for a little while and notice the glass has stains on it. It looks like they sprayed it with something and stained it and it’s showing. Any ideas on how to maybe clean it off keep in mind this tank is up and running with fish and rocks already so there no taking back apart. I’m not sure what it was clean with maybe acid that might be why it’s showing up. Thought about trying to sand it but was unsure if it would be harmful.



