Are These Decorations Creating Hydrogen Sulfide?
Obviously I don't think some rock piles and a piece of driftwood are directly creating H2S. However, they do create some areas in the tank where no plants are growing, and between that and the dirt layer underneath, is it creating this excessive H2S that's killing my plant roots?
I have another smaller dirted tank that has very few rocks and other decor, mostly overgrown with plants, and while it creates H2S I've never had plant roots rot from it.
(the anubias in the middle is surrounded by a rock pile, and the java ferns on the right are growing on one big rock.)