Right now I have the Nurse Shark which is almost two years old she's only about 17 to 18 inch, I have two Bamboo's that are only 7 inch to 8 inch, and the two Coral Cats that is almost 10 inch. Yes the tank is getting overcrowded. But like I said before working on there new home of 700 gal. I have another shark as well in my 150 gal thats a 10inch Leopard with some of my nurse sharks old tank mates. And I'd like to get it all down to one tank, however i have read temp diff. between the Nurse and the Leopard so I not sure how its all going to work out.