Do you have a UVB light on him and is it more than 6months old? Is the lamp no more than 12inches away from him? Dust the crix with regular calcium at all feedings,and then once a week feeding dust with calcium with D3. Make sure that both types of calcium doesn't have phosphorus in it. The shaking is more than likely a calcium thing. But if his calcium regimen is good it could be neurological. Beardies under a year want more protein than greens. As they get older they become more interested In the greens. Do you see any kinks in his tail? That would indicate mbd, gut load any feeders with either the calcium rich cricket diet or laying hen mash to enrich the actual feeder with ca as well. I would still check with a vet but because beardies are diurnal they need a really good calcium and UVB regimen. UVB should be changed every 6months to a year. The amount of UVB put out by the lamp decreases over time. I hope this helps.
Morgan
