For insect eaters you actually want a phospherus free calcium supplement. They do need calcium and phospherus in a 2:1 ratio. Feeder insects are, however, high in phospherus and low in calcium. Therefore, if your supplement already has a 2:1 calcium to phospherus ratio you'll end up with too much phospherus. I use and recommend rep-cal with vitamin D3 for als; it is phospherus free.
-Alice


