You said..."I have a heat emitter at night, the room temp is 70"...if the room temperature is 70 then are you keeping the cage warmer by using the heat emitter? Veiled chameleons can be even a few degrees cooler than 70 at night without a problem. Its supposed to be good for them.
You said..."zoomed powersun uv, tis about a month old light, both the heat and light are sitting on top. lights from 9am to 7pm"...I have no idea how good/bad a zoomed powersun is...I use Repti-sun 5.0's and have for years. I've been happy with it so I've never changed. I have found that changing to different bulbs affects the balance of other things. UVB from tube lights or from direct sunlight allows the chameleon to produce D3 and thus use the calcium in its diet. The UVB from either should not pass through glass or plastic.
You said..."He has been eating less and less. He doesnt seem to have that big of an apetite"...what size crickets are you feeding him? As he becomes an adult he would cut down a bit on the amount he eats and the size of the crickets/insects would become larger...but if he's losing weight, then I would take him to a vet. There is something wrong if that is happening.
You said you use..."flukers gut load and water for the crickets, and oatmeal for the waxworms. silkies"...I feed/gutload crickets with greens (dandelion, kale, collards, endive, ROMAINE lettuce, mustard greens, etc.) and veggies (carrots, squash, sweet potato, sweet red pepper, zucchini, white potato, etc.). I don't use commercial products because I find they can throw off the balance I have going doing things the way I do. By "balance" I'm concerned mostly with the calcium/phosphorous, vitamin A and vitamin D3. Silkies should be fed mulberry leaves or the powder that is made for them. Waxworms...here is a site that talks about them...
http://adcham.com/html/insects/insects-waxworm-rearing.html
You can feed him small superworms, and butterworms in addition to the crickets and waxworms. BTW...waxworms are fatty so don't overdo them!
You said..."I dust the crickets with calcium dust."...I dust at most feedings with a phosphorous-free calcium powder. Most insects have a poor ratio of calcium to phos. so this helps to compensate for it. I also dust twice a month with a vitamin powder that has a beta carotene source of vitamin A since beta carotene can't build up in the system. Its controversial whether chameleons can convert beta carotene to vitamin A...so some people give the chameleons a little preformed vitamin A...but you have to be very careful with this since it can build up in the system. Excess preformed vitamin A can prevent vitamin D3 from doing its job and lead to MBD. Scince my chameleons only get artificial UVB, I dust with a calcium/D3 powder twice a month lightly. D3 from supplements can build up in the system, so don't overdo it.
You said you have a money tree in the cage...I'm not familiar with that. It should be fine as long as its non-toxic and has been well washed (both sides of the leaves).
Does your chameleon show any signs of MBD? Crooked limbs (bowed or that appear to have an extra joint in the limb), can't shoot his tongue out all the way, flexible jaw or casque, grasping his own limbs with other limbs, inablility to lift its body off the branches, etc.?
Do you have a substrate? Is he pooping?
Is he sleeping during the day?