are you planning one geting a bigger tank for your atf. 6o gal would be ok for a very short while if he is like 3", any bigger and you like the fish and want to see him grow bigger and healthy spend the money and get a good size tank. i mean i have a 3" atf in a 55gal but thats just tell he gets a little bit bigger so he can go in my 150. soon they will be to big for my 150 and i will haft to upgrade. but if you dont plan on geting a bigger tank and your atf stays alive and gets to big pm me and ill buy it off you 
