Curiosity101
Is now at University! :D
If you got a polystyrene ball then you could create quite a course surface for the moss to attach too. Not sure if polystyrene is safe in a tank so you may want to double check that.
If you go with a pingpong ball then I'm pretty sure the moss will never attach, but it will attach to the hair net which is attached to the ball. Buy a nylon hair net and it shouldn't decompose
If you go with a pingpong ball then I'm pretty sure the moss will never attach, but it will attach to the hair net which is attached to the ball. Buy a nylon hair net and it shouldn't decompose







