In the last 2-3 days my Aimara Wolffish has been rocketing upwards to the top of the aquarium and hitting the rim/lid of the tank. We've had some lighting/thunder storms recently and that's all I can think of. The water parameters are great and nothing else has changed. It only does the banging when I'm around ,that I can tell. Obviously if I'm not in the room, I can't see or hear it. Surely it's not doing that behavior because it wants to be fed. Any ideas? It's not really hurting itself at all, but it's just odd behaviour. Also, its appetite hasn't changed, nor anything else, behavior wise. I guess it really bothers me because I can't seem to figure out why it's doing it. Thanks.