Make sure you feed it meaty foods. If you have aggressive fish in your tank, I would be wary. I loved mine to death but it can find the smallest hole and/or overflow tube. The are almost as good as the snowflakes for escaping a tank.
I fed mine a combination fish mush but it actually really liked the formula 2 products for
angel fish. Not sure why but he would make a bee line for the small cube (I cut mine up into 8ths) and just seemingly suck on it until It was digested I guess. Mysis was the other thing he seemed to enjoy.
Be careful that your rockwork is glued together and sturdy. My jawfishes have at one time or another toppled some of my rock work until this point my rock work is stable on the glass (actually an eggcrated bottome) where they can dig under it or supported with pieces of PVC pipe.
Ray