[spypet]

I removed my dwarf African frogs who were digging up my foreground too often, and put in these red claw crabs
here lounging above the water line a top my moss covered nylon rope suction suspended from my fixture lens.
they eat the plant debris that gets stuck on the rope at the water line, and down below all around my substrate.
the rope bottom has weight on it so I can lift the fixture hood a few inches to service the tank without disturbance.
starting to experiment with Manzanita wood after a major pruning. second pic is a week later with different twigs.