I think that might be too big for a hatchling, they tend to do best in small little houses without lots of room, it makes them feel safer and more secure10 gallon or less in my opinion. My hatchling was very scared in his full 20 long, I divided the 20 long into about a 10x10 inch square a couple weeks ago, and he finally had his first meal with me and I've had him for almost 2 months.