I recently came into procession of a mature Raphael cat, about 8-9". after some quarantine, I placed him into my main tank with some polypterus, pbass, and a tiger shovelnose. I am looking at this thing moving around and it scares me with it spines, they look very menacing, like they can hurt other tank mates. anyone with more experience with this fish can lay my fear to rest? or tell me I need to return him? it was let go so if I had to return him I have to give it to a lfs.