PoseidonCichlid
Aquarium Advice Activist
- Joined
- Oct 5, 2014
- Messages
- 103
I've got a few patches of brown (algae?) stains on the glass of one of my aquariums that the magnetic scraper can't remove. What's the best way to get rid of these without scratching the glass? I can lower the water level during a change but the stains at the substrate line will always be under water so I need a method that's safe for the fish in an occupied tank. Thanks for your help.