Okay, so you'll want to get a calcium without D3 then, Zoo Med ReptiCalcium Without D3 is a good one and is sold at most pet stores. The Fluker's calcium with D3 has way too much D3 in it, so to save money and simplify life, just get a multivitamin with D3 in it instead of a calcium with D3 and a multivitamin without. Zoo Med Reptivite With D3 is perfect and is also sold at most pet stores! So you'll use the calcium without D3 at every feeding, except for once every two weeks, wheel you'll use the Reptivite With D3. Because of the quantity of D3 in the Fluker's, I'd get bloodwork done from a cham vet to see if he has too much D3 in his system.
@kinyonga should OP just use calcium without D3 and a multivitamin without D3 because of this (
@auheen you'd buy and use Zoo Med Reptivite WITHOUT D3 instead of the Reptivite with D3)?
If it's not too stressful, taking him outside for natural sunlight will help until you get a T5 UVB bulb and fixture (you can look on FB Marketplace for used fixtures so you only have to purchase the bulb at full price, look for promo codes at online reptile stores from YouTube Channels, and/or see if there is a reptile convention near your soon where you can get a deal on them), which is a priority. If he's outside long enough, he won't need any D3 supplementation either