doesn't look like a bristle worm, they have wider bodies.
monitor the crab.
I wouldn't go too extreme with pipe caves, just use a 6inch length of pvc pipe and put one end in the sand. Before you put it in the tank, smear some silicon on the outside and sprinkle sand over it to camouflage it.
monitor the crab.
I wouldn't go too extreme with pipe caves, just use a 6inch length of pvc pipe and put one end in the sand. Before you put it in the tank, smear some silicon on the outside and sprinkle sand over it to camouflage it.