For the past few months, my nem has been staying still, then deciding to run around for a while. I can't for the life of me to get it to stay still. It's not stressed, it's bright red, green and purple and has remained that way since I got it. Do some nems do this or is there something I could do to stop it? My tank does have a few crevices that it has found and stayed in, but that lasts only a week before it's on the move again. If yall got any tips then please shoot them my way, I'm about to give it away.