This stuff is amazing! I spent less than $4 for three containers- making it by FAR the cheapest calcium supplement I've found. Dont let the price fool you, though- this stuff is GREAT! I don't own any reptiles, but I DO own some aquatics- including shrimp and snails, which both need more calcium than even my hard Missouri water can provide. I got this to put into "snello", combined with some high protein fish flakes, gelatin, and pureed veggies. They LOVE the stuff. Even the fish do! Everyone's shells look tons better now! It's awesome! Definitely a great buy. I'll be coming back to Fluker's for sure.