- Reaction score
- 1 year
So I have a sponge on top of my filter’s spray bar to reduce flow and and noise, it’s recently had green algae on it because the light is close to it. I’ve tried scrubbing it off with a toothbrush in warm water but didn’t get far. I’m thinking if putting it in hot water but scared it will kill beneficial bacteria and still won’t come off. Any ideas?