My tank is four weeks old now, for the past week it has had fish and snails/crabs. I have 5 blue legged crabs and 5 of the smaller snails in the photo. But there is this big guy and he isn't moving much, my tank is still bare so I got some algae sheets for him to eat but he hasn't touched them despite them being on the ground with easy access. He doesn't move much is he okay? I've been feeding my tank 1/4th a cube of frozen omnivore cubes per day.





