I'm wondering when I should be able to move my smallest gator gar into the pond, with the 3 bigger ones. I worry about the two large gator gars trying to make a snack of him. They are just shy of 3 feet. There is also the midsize gar which is about 25". The smallest aligator gar is about 18" right now. My midsize gator gar was added around 20" but was considerably thicker than the smallest gar currently is. When should the smallest gar be safe to add?