I use Rep-Cal pure calcium, calcium w/D3 and Herptivite for my Leo's.
When they were babies/juvies I dusted with the pure calcium or vitamins every other day (each, so 3 days of calcium and 3 days of vits) and the D3 once a week. I never tried the 'all in one' supplements so can't comment on them.
I always leave a milk cap of pure calcium in the tanks, they do lick at it.