I wasn't sure where to post this, it is more a general question, not specific to any particular frog species.

Is there such a thing as too much calcium in a frogs diet? Do they 'get rid' of any they don't utilise?

I dust my frogs crickets every time I feed him, I thought that as he doesn't eat all the crickets straight away he won't be getting calcium on all of them. Also I keep my crickets quite a while, a couple of months probably, in this time they eat cricket gut load pellets and occasional bits of salad or veg. Would I need to add any vitamins when dusting them? And how often?