I bought a long tentacle plate about 2 weeks ago. It has been doing great!! Adapted to my tank very well. Ive noticed it has been inflating really big at times and deflating to a smaller size at night. It has also moved about 3 or 4 inches from where i put him in the tank, which i think thats why it was inflating, to move. Anycase, i got back from a long weekend up north yesterday and it look how it did when i put it in the first day( real small and shrunkin). I fed it right away, ate everything very well. but this morning it still was small and shrunkin. Does anyone know what could be going on?