I have a 75 gallon that was used for a salt water tank for years, but recently we had a baby bearded dragon in it for about 2 weeks. It was only about 2 1/2 inches long. I know that people say you cant switch from a reptile to fish so I was wondering if you guys thought it was safe to put fish back in this tank or not? Since it was such a short time and a small lizard.