Tygerr,
Your spot on ever time.

I really like the T-Rex dust, but it's
not an all-in-one supplement.
I use 5 supplements.
1) Phosphorous free calcium without D3
At most feedings
2) Phosphorous free calcium with D3
once per month
3) Minerall(o)
Rotate with regular calcium
4) Herptivite
once per month
5) SandFire T-Rex Chameleon Formula
once or twice per month