I would guess parisites or impaction. Do u have a lightcycle? And has it been cold? Do u have variety of food items? Could be alot of things, get a fecal done, put yr WTF in 78 to80 • Water, see if it clears possible impaction. My whites get runny when ifeed large night crawlers, or allot of wax worms. If your feeding canned crix, make sure they're not spoiled