Please do not try to put any Lionfish in a 35 gallon tank too small! Even if the Lionfish is three inches it will grow to a point and die! If you really enjoy a Lionfish you must at least get a 55 gallon tank or larger. Remember Lionfishes can each fishes in your aquarium. The Lionfish can open it's mouth upton three times and swallow anything that can be place in his mouth. I have a baby lionfish which is about three inches long and my largest one is about 14 inches long. I have eight different Lionfishes. So think tank size and fishes sizes before you purchase one. Let me know if you need help with your Lionfishes!