I have had some nasty stuff growing in the water of my water heated LL Nep tank and was thinking hydrogen peroxide would be good to keep anything from growing. Maybe treat every 2 weeks with a few tbs?
Is this a good or bad idea. There are no plants that touch the water and good ventilation.
It's used in mushroom cultivation to keep nasties at bay so I thought it would be better then trying to empty a 55g tank every 1-2m.