the best way is to put the mealies/crickets/etc. into a plastic bag (if they came in one when you bought them, those bags are great to use), toss enough calcium to cover the insects in the bag, close it tightly, and shake until they're all completely covered
mealies don't stay covered very well for long, though.. we actually don't dust our mealies, only the crickets that we throw in every so often. we leave a little dish full of calcium inside the tank for the leos to lick if they want
we also bought one of those calcium recharge bottles from Big Apple Pet Supply, which makes this calcium mold/block at the bottom of a water dish. the calcium slowly dissolves in the water and so the leos ingest it when they drink..seems to be working pretty well, you can actually see the calcium in the water.
put some pure calcium in a pop bottle lid, i saw my male once lick out of it but in both my male and female dishes when they were seperated, you could see little lick marks
when i fed crickets, i found out that -shake- isnt the right word to put calcium.. i had 1/3 of them die (i guess i am to strong for those little guys)
"gently toss" is a better word
but i don't use crickets anymore, for mealworms i put some calcium in the mealworm dish along with some vitamin supplement, maybe the worms eat the calcium and that would be just as good is having it on them.. When i grab worms out of the dish and sometimes drop them in front of my leos to make sure they are eating.. i usually rub it in some of the calcium then.
Just get the recharge bottle though, and use it with your own dish to save on costs The bottle says that this calcium mold lasts for 2-3 months, but ours is going on 4 months - we bought two and we still haven't needed the second bottle! Moreover, one bottle was enough for two dishes :main_yes:
I use alot of Gatorade and juice bottle tops. I have seen at leaste 6 of my leopards lick calcium from their dish. For dusting my mealworms I use a deli cup/shipping cup. I add some Herptivite and mix with an equal part of Calcium with D3. Count out my mealworms and gentley shake them.
Since I get these questions quite a bit and I see folks torturing themselves with plastic bags and mixing different vitamins and minerals together I created this new section of my website that goes in pretty deep to this subject.