Recently, someone mentioned to me how they’d introduced live black worms to the substrate of their planted fish tank. They suggested they’d help break down the fish waste into more easily usable fertilizer for the plants, as well as addition snacks for the cories in there. I’ve had them get into my own substrates in some of my older tanks, but I had just vacuumed them out, assuming they were harmful in some way.
Anyone know more specifics about this?