I think you need more light for a hibiscus. Also if it's ambient 80-90 that is too high. 80-90 is the basking spot temp for an adult male Veiled, and 90 is pushing it. He needs ambient temps of about 70-75 if he's going to be in the same spot all day. Also, he needs more plants and vines to climb around in, especially once he gets bigger. I would recommend adding a pothos, and other plants besides what is in there right now. Plants aren't just for cover, they provide a humidity gradient, which is very important. I recommend getting some sticks from outside, cleaning them, and putting them in the enclosure with some fake vines. One chain/vine and one medium plant would be fine for a cage he spends an hour or so in, but being exposed like that for prolonged period leads to stress. As for the hibiscus, I recommend getting a t5HO at 5000k for it or some Jungle Dawn Leds if you want to keep it in the enclosure for longer.