AbbeysDad
Fish Gatherer
In my 110g stock tank (with 40g sump) I have what appears to be a sphagnum moss growing on the upper side of the tank. Quite like the terrestrial moss you'd see on the ground and on rocks in shaded, damp areas. It's in a couple of places. No idea how it got there. This tank has water sprite, duckweed, and at one point some java moss, but never any moss like this!