I bought a really cool jaw fish about 2 weeks ago. He started making some cool caves in a couple different places. Then my doty back that shouldn't be in the tank started giving him a hard time. Long story short, I got rid of the doty back and found the jaw fish hard a rock on the floor the other morning. I really liked this fish and want one in the tank. Are they know to be jumpers or did the doty back scare the daylights out of him to the point where he had to get out, even though it was gone? Will I need to put the lid back on the tank with a jaw fish?