Howdy! Hope everyone is well.
I have a couple of questions on dusting/vitamins, just wanted to get some input.

I have recently noticed that my Herptivite has a few tiny dark pieces in it that are kind of hard. I don't normally see it just looking in at the container, but have noticed it if I sift a little into the cap or in a plastic container. You can hear it clinking around a little like tiny hard grains of something. Anyone else ever notice this? I just want to be sure I don't have a bad or contaminated batch.

I was looking into some of the Repashy products for my Grays to replace the herptivite, but haven't seen anything yet that offers the same multivitamins as the herptivite. Maybe I'm just not seeing it. But with that being said,
What do you use for calcium and vitamins? Right now I have the Herptivite and Rel-Cal Calcium with D3.

Just curious as to what everyone is using, and if the needs between other frogs are different from Gray Tree Frogs.