I have aloe planted in all my enclosures. They only eat at it when there isn't much other food growing. Never had any issues with runny stools or signs of diarrhea.
I bought an aloe for Tiago he did not make a fuss....he ate it like the rest of his food...ive' never had a runny stool problem either...when i spotpick?
I had a bunch of aloe growing in the yard and they would stop by occasionally and eat some with no issues. Unfortunately the last winter freeze finally did it all in and this drought hasn't allowed it to grow back yet. Not a problem for them to eat it.
My yearling eats it. Shows up on the rotation about once a week. I dice it like a onion and sprinkle with powedered Timothy hay. I like it because of the stickiness/wetness the hay sticks and is a great way to introduce hay into his diet. Something he will not eat on its own.
my torts don't like aloe at all. I'm not sure why, but they will not touch it! i personally do not believe the runny stool thing, i just have read some that it CAN
My lep took a bite of aloe and spit it out and made a face. Same for agave. Opuntia he loves more than life itself, eating what he can muster, and falling asleep on the rest
I had some growing wild, so just let him take a bite. It was tender new growth, so not fibrous and he was able to snap off a piece (which he quickly spat out)