Thank you all, I think he's amazing as well, that's why I couldn't pass up the deal. I got him for $30! Other ones double the size were $50, at my
LFS. Other places I have seen them before they were 60-80 and even more some times.
So after I did some calculating, he actually should be just fine in there even at full size. With the amount of fish I have in there now plus him at full size I'm @ 74" of fish in a 75 gallon tank. I'm still planning on getting another tank so he may have a new home in the new year.