Here is a good site to help I.d plants
http://m.thetortoisetable.org.uk/m/plants_19.asp
I've only seen those before, but I have never fed them. A SUPER easy growing cactus is opitunia. My girlfriend cut and planted 3 pads and it now is 3 feet tall, with 12 or so pads on it. I also feed aloe Vera that as part of the succulent family that's great for sulcatas!
I've never seen opotunia cactus look like that. I searched in Google images "young opotunia cactus" and these varieties came up I personally prefer a cactus with the least amount of thorns. I scrape mine off with a knife. My cactus started growing in a pot and they were the size of my hand. This was three individual pads that were just partially put into the dirt. That was one year ago.Hi @Blake m , is my first cactus an Opotunia? Also, approximately how long before it grew to 3 feet tall? ..and what's your experience so far with growing and feeding aloe vera to your torts ?
Thanks,
Franz See