I use this supplement on my reptiles food and it is so great, I was curious if it would be OK to sprinkle some on my Crabbe's food once in a while? It has so much good stuff in it but I would hate to give some to the crabs without being sure. Calcium ICB Plus by Allen Repashy Here are the ingredients as listed on the bottle: Calcium Carbonate, Kelp meal, Calendula Flower "Pot Marigold", Capsicum annuum extract "Paprika" (saponified), Tageteserecta extract "Marigold" (saponified), Pfaffia rhodozyma yeast, Spirulina platensis algae, Hibiscus sabdariffa Flower, Rosa canina Powder "RoseHips", Curcuma longa "Tumeric", Cantharellus cibarius "Chanterelle Mushroom", Rosmary Extract, Mixed Tocopherols (as preservative), Cellulose (as carrier), Potassium Sorbate (mold inhibitor) Vitamins A, D, E, Menadione, Thiamine, Riboflavin, Pyridoxine, B12, Ascorbic Acid, Niacin, Pantothenic Acid, Folic Acid, Biotin, Beta Carotene and Choline Chloride. Analysis : Crude protein, Min. 5%- Crude Fat, Min .2%- Crude Fiber, Max. 1%- Moisture, Max. 8%- Ash, Max. 35%- Calcium, Min. 17%- Calcium, Max. 19%- Phosphorous(P), Max. 3%- Vitamin D-3, Min. 40,000 IU/Kilo- Vitamin A Min 400,000 IU/Kilo- Beta Carotene Min. 1,000 mg/Kilo Thank You in Advance!