Those two supplements should only be used twice a month...you need a PHOS free calcium powder to dust the insects lightly at all feedings but one a week...and on that one feeding alternate between the two you have. Also, using that vitamin powder you won't be providing prEformed vitamin A...and since it's a panther chameleon it will likely need a bit. You have to be careful with prEformed vitamin A and D3 from supplement because they are fat soluble and can build up in the system. They are also antagonistic to each other somewhat and need to be in balance.