Why is he so small?

[George1994]

He is in a rack with back heat controlled by herpstat4 which also controls my other 2 racks. Hotspot 90 ,cool side 81, humidity 60. Blue shop paper towel substrate. He has 3 hides among other things ive added to make his space a little more cluttered. I've tried a few different things; different hides, more clutter, changing which slot on the rack he's in. All changes were made weeks apart from each other to prevent stress. No matter what the change, his habits are the same: on for 3 weeks, off for a month. I tried bathing him once as recomended by someone on here but didn't make a difference. Many say bathing is more of a stresser anyway so I avoid it. Not sure what you mean by "electrolyte bath".
I have 7 balls total which I've had for a year, all doing great. Everyone eats every week except for my clown

Similar to my Lesser, these things happen with Ball Pythons at times. Most snap out of it after a while, took mine months and months!

Electrolyte bath -

http://www.captivebredreptileforums....lp-please.html

Another thing mentioned there is taking them for a drive! Don't know why, but this seems to work quite a bit when trying to get a feeding response. Put him in a bag, go for a drive with him for 15mins and try feeding him straight after!