Hydrogen Peroxide

[anteatergoanna]

Just want to say a BIG Thank you to those of your that have suggest HP for killing Algae. I put some on my moss and 2 days later it is starting to look nice and green again and not that horrible black.
Thank you so much for sharing this tip

 

[Old Scales]

Good for you. Yeah, H2O2 has become my go to for algae, plant and general sterilization.
I use it now for everything instead of bleach as it's so much safer for the fish. I still have to use bleach to clean the gunk from the top part of HOB intake tubes and for recharging Purigen, but that's it. OS.