Thank you for getting back to me. I suspect you got your information on care from a pet store. Most people do. While we should be able to rely on such information, unfortunately, it is often wrong. They sell people the wrong lighting, advise the wrong foods, and often don't know the correct temperatures for the various reptiles. After months or years of things not being quite right, the animal becomes ill. Almost everything you have been told is wrong, and i suspect that is why your iguana is having so much trouble. Even though you have been trying so hard to keep him healthy, when you didn't have correct information to begin with, things are going wrong. I'm going to give you some measures to take.
The swelling could be due to a number of different conditions, from infection to a reaction to Metabolic Bone Disease (MBD). Honeydew melon should not cause a problem, but the rind should be discarded.More variety in the diet would also be important. Here is a reputable source of information on feeding:
The temperature directly under the basking light should be 90*F to 95*F. The coolest part of the cage should be 80*F. Iguanas need two kinds of light. The basking light provides heat. The UVB light doesn’t get very warm, but provides UVB rays. Without both types, an iguana will eventually get sick and die. A Reptisun 10.0 is a good brand of UVB light. Full-spectrum, UV, and UVA are NOT the same thing. The light must produce UVB rays to do any good. UVB bulbs are only good for 6 months, even if they still look fine, because after that amount of time, they don't emit enough UVB rays to keep the iguana healthy. Without UVB light and calcium, an iguana will develop MBD, which can cause swelling around the mouth. It's good to plan on replacing the bulb every 6 months. You should also give him a calcium supplement. The following site has information on choosing supplements:
It wouldn't be bad idea to have the iguana checked by a vet in case he has an infection. This link will take you to a directory:http://www.anapsid.org/vets/index.html#vetlist
At the very least, you'll want to adjust the temperatures, get a UVB light, feed more variety, and provide calcium. If you ahve more questions, let em know in a REPLY. I hope Little Green Dude.
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