As for the 240 gallon tank I am thinking of turning it into a breeder real grow out tank. after playing with the bottom holes that someone was sloppy trying to seal with bondo I one night was playing with the tank, poring water out after trying to seal it better didn't really work and I hear the plastic over the hole make some noise, so I pressed on it found it was not attached at all well, hit on the bottom a little and it popped it lose a little, was able to get it off after that with very little force. Then did the same with other three. They are not acrylic and were not attached well at all, glad I finally went backwards instead of trying to cover up someone's lousy job. Sanded them down a bit and think I could hook up an fx5 to the drain holes in the bottom as I plan to only fill it half way or a little more. All the seams are great on the tank so 60.00 probably will be worth it. after I buy another 30.00+ in bulk heads. lol 4 1" and 2 1.5"