To sex your chameleon...look at the heels on the back feet...if there is a tarsal spur there its a male...see post #3 in this thread...
https://www.chameleonforums.com/male-spurs-56074/
Some of the following has already been suggested to you...but I think its worth repeating...
A chameleon of that size should be eating as much as it can eat in a couple of minutes at each feeding...and it should be a lot more than 2 crickets (of the appropriate size).
You said you use calcium once a month....IMHO that is not nearly enough...see below for supplementing.
It also needs to have UVB light either from a proper UVB light or direct sunlight (that does not pass through glass or plastic).
Here is some information that I hope will help....
Appropriate cage temperatures aid in digestion and thus play a part indirectly in nutrient absorption. Temperatures needed can vary with the species and age. For hatchling panthers and veileds I keep the temperature in the warmest area in the low 80's. For older panthers and veileds I keep it in the mid to high 80's for the most part.
Exposure to UVB from either direct sunlight or a proper UVB light allows the chameleon to produce D3 so that it can use the calcium in its system to make/keep the bones strong and be used in other systems in the chameleon as well. The UVB should not pass through glass or plastic no matter whether its from the sun or the UVB light. The most often recommended UVB light is the long linear fluorescent Repti-sun 5.0 tube light. Some of the compacts, spirals and tube lights have caused health issues, but so far there have been no bad reports against this one.
Since many of the feeder insects have a poor ratio of calcium to phosphorus in them, its important to dust the insects just before you feed them to the chameleon at most feedings with a phos.-free calcium powder to help make up for it. (I use Rep-cal phosphorus-free calcium).
If you also dust twice a month with a phos.-free calcium/D3 powder it will ensure that your chameleon gets some D3 without overdoing it. It leaves the chameleon to produce the rest of what it needs through its exposure to the UVB light. D3 from supplements can build up in the system but D3 produced from exposure to UVB shouldn't as long as the chameleon can move in and out of it. (I use Rep-cal phos.-free calcium/D3).
Dusting twice a month as well with a vitamin powder that contains a beta carotene (prOformed) source of vitamin A will ensure that the chameleon gets some vitamins without the danger of overdosing the vitamin A. PrEformed sources of vitamin A can build up in the system and may prevent the D3 from doing its job and push the chameleon towards MBD. However, there is controversy as to whether all/any chameleons can convert the beta carotene and so some people give some prEformed vitamin A once in a while. (I use herptivite which has beta carotene.)
Gutloading/feeding the insects well helps to provide what the chameleon needs. I gutload crickets, roaches, locusts, superworms, etc. with an assortment of greens (dandelions, kale, collards, endive, escarole, mustard greens, etc.) and veggies (carrots, squash, sweet potato, sweet red pepper, zucchini, etc.)
Calcium, phos., D3 and vitamin A are important players in bone health and other systems in the chameleon (muscles, etc.) and they need to be in balance. When trying to balance them, you need to look at the supplements, what you feed the insects and what you feed the chameleon.
Here are some good sites for you to read...
http://chameleonnews.com/07FebWheelock.html
http://web.archive.org/web/200605020...Vitamin.A.html
http://web.archive.org/web/200406080...d.Calcium.html
http://www.uvguide.co.uk/
http://raisingkittytheveiledchameleon.blogspot.com/
http://web.archive.org/web/200601140...ww.adcham.com/
http://chameleonnews.com/02NovHorgan.html
If you can't access the sites above that have the word "archive" in you can do it through the WayBackMachine.
Hope this helps!
allencg101 said..."when i was stationed in hawaii i never had to have a lamp they did fine just sitting by the window and having 80 degree temps year round"...if your chameleon never got any UVB and/or DIRECT sunlight I would likely have developed MBD which might be why you also said..."be careful with him at that age when handling him their legs are really
fragile and can
break easily and their
balance isn't that good or built up".