Iguana care is very specific. There is too much for a single post or thread but
First Diet (condensed version)
An iguana's diet should contain the following each day:
70-80% calcium rich Greens: Collards, mustard greens, turnip greens, dandelions, arugula, watercress are the better ones. Kale, beet greens, chicory greens and escarole used in combination with the better greens are also good. Stay away from lettuces (except for a very occasional treat) because they have very very little nutrition if at all and the iguana will fill up on it and not eat the nutritional food--in otherwords it is junk food. Spinach should only be used occasionally because it is way too high in oxalates and phospherous. The oxalates bind with the calcium making it undigestable and the phospherous binds with calcium in the blood making the calcium there useless. But spinach is high in iron so it is good if only used very occasionally (1-2x a month maybe).
20-30% vegetables: Winter squash (acorn, butternut, kabocha, ect..), green beans, snap peas, okra, parsnip, yucca root. Summer squash (zuchini, yellow, mexican or white, ect...) occasionally is good too. Red, yellow, and orange bell peppers are good color enhancers.
No more than 10% fruit: Blueberries, figs, mango, papaya, and prickly pear (cactus) are the better fruits. Strawberries, raspberries, black berries and melons are good. Flowers should be considered a fruit
NO ANIMAL PROTEIN OF ANY KIND
Temps of enclosure
Basking: 92-98
Ambient (overall): 80-85 (the coolest spot should not be lower than 75)
Night time overall or ambient should never get lower than 70-75. I keep mine at 80-85 though
General Care Information (online):
HCN Iguana Care Articles
Melissa Kaplan's Iguana Care Pages
GIS Green Iguana Care Information
Books:
Green Iguana: The Ultimate Owner's Manual by James W Hatfield III
Iguanas for Dummies by Melissa Kaplan
Both are excellent resources. I have found them at very reasonable prices at Amazon.com
Hope this helps
