H202 acted like Agent Orange!
So one of my sons tanks had a a slight hair algae problem. On Sunday during our usual waterchanges, I decide to dip his hornwort and anacaris in a 50/50 tank water and 3% H2O2 dip. One minute dip. Placed plants back in the tank and procceded with the usual waterchanges. Well by this morning there was nothing but stems and a huge amount of leaves littering the tank. What did I do wrong? These were beautiful healthy plants that were growing for months.