Howdy,
You MUST have an artificial source of UVB if your critter is kept indoors. I recommend the Zoomed Reptisun 5.0 18" fluorescent tube. 2nd choice is ReptiGlo between 5.0 and 8.0 rating.
Here's what's in ReptoLife Plus:
Moisture max. (6%), Calcium min. (4.6%), Phosphorus min. (0.6%), Potassium min. (0.3%), Sodium min. (0.1%), Chloride min. (1.3%), Magnesium min. (0.02%). Minerals and Vitamins (all minimums) - Iron (12.95 mgkg.), Copper (270 mgkg.), Manganese (865.35 mgkg.), Zinc (823.84 mgkg.), Iodine (76.40 mgkg), Vitamin A (263,550 IUkg), Vitamin D3 (12,800 IUkg), Vitamin E (1,057... More IUkg), Menadione (52.50 mgkg), Thiamine (1,940 mgkg), Riboflavin (1,450 mgkg), D-pantothenate acid (668.61 mgkg), Ni Net wt. 100 ml (1.77 oz.), Weight: 1 lbs., Manufacturer: TETRA HOLDNGS, INC
A few things to note:
You would like to shoot for no added phosphorus since our normal feeders have too much of it compared to the calcium levels.
They list Vitamin A (263,550 IUkg). Vitamin A is a controversial subject for most chameleon keepers. But one thing that does seem to be mentioned more often is that Montane species, which Jackson's are part of, are much more sensitive to vitamin A overdoses.
They list Vitamin D3 (12,800 IUkg), which is needed for chameleons that don't get many hours of unfiltered sunshine. You can overdose added D3. This product is probably "middle-of-the-road" in strength. Some are rated at 4,400 IU/kg and others are 400,000 IU/kg.
Bottom-line:
I'd suggest switching to Miner-All (I) and Miner-All (O) and Herptivite if you can find these products.
(I) has D3 but not too strong. Use is maybe 2/month.
(O) has no D3. Use it 2/month
Herptivite is mostly vitamins (no pre-formed Vit A). Use it 1-2/month.
More links for general info:
http://www.chameleonnews.com/ especially
http://www.chameleonnews.com/ref.html
http://www.chameleonsdish.com/
http://www.adcham.com/