Interesting that you mention succulents. I had asked that question some time ago and I did some research into whether or not these plants are actually succulents. Nope. They're an herb. Here's some quotes;

"Cannabis sativa, indica and ruderalis are all a sub-species of Cannabis,which is a dioecious, annual herb. The correlation between cannabis and the tomato plant stems from them both having similiar growth and flowering requirements. (i.e nutrients, ph, temp, etc.)"

and

"...is not technically a succulent at all, but an herb"

I was trying to find out because of a formula for a fert I was going to use (Schultz Cactus) giving a recipe for indoor or outdoor succulents. Anyway I found out that although cannabis is not technically a succulent, but an herb, they both require similar fert strengths to prosper. FWIW

As for me using the cactus fert, if I had access to something other than that right now I wouldn't use it. Rather go organic then chemical. Probably will next time.