Inrk,

There is very little information that proves UVB is beneficial to frogs. It won't hurt to have the UVB bulb over them, but it is not a replacement for dusting.

I use Repashy Calcium Plus, but I use it as part of my rotation but not as main staple. It is best to use a calcium + D3 supplement and a multi vitamin in a rotation throughout the week. I use the following

Rep Cal Calcium +D3 (3 to 4 days a week)
Repashy Supervite (3 days a week)
Repashy Calcium Plus (1 day a week)