Black Jungle doesn't use any fertilizers that are harmful to amphibians/reptiles (I've asked before to make sure ). If I remember correctly, they use a fertlizer called Dyna-Gro(Dyna-Gro Fertilizer - Liquid Grow 8 oz. the link for the fertilizer details) which is safe.

Whenever I get plants from BJ, I still clean the plants, rinse them and re-pot them in fresh substrate.