Someone on the forum suggested I spot treat my dwarf hairgrass with hydrogen peroxide for what looks like spirogyra or green string algae. Is this wise to do? I've read on other threads that hydrogen peroxide will destroy tissue cells in plants and stunt them or worse even kill the plant. Is this true? Also in the case that it doesn't since there is a highly popular thread about many people successfully getting rid of algaes with this method, how does hydrogen peroxide affect beneficial bacteria? Thanks for any input on this question!