hi kazuyal the first thing i want to say is get rid of the heat rock they will only cause burns to your ig when they lay on it igs dont heat up from there bellys only absorb heat from above. next you are giving to much fruit they should only have fruit no more then 2x a week. the spring mix you are giving is not what they need they need good greens like collard,mustard,dandlion,arugla,turnip. because lettuce has no nutritional value a good diet i follow is www.iguanaden.org i follow that diet and have a very healthy ig now for the last 3 yrs.or you can try http://anapsid.org its melissa kaplan site her book iguana for dummies is a great book to have a lot of good info in it.and you dont have to grid up there vegs just chop them into small chunks.and last the lighting should be a basking bulb not to go over 95 during day and a uvb full spectrum fluorescent or a power sun or mega ray flood bulb that have both uva and uvb and heat and at night i have a infrared red bulb for heat and no light temp can go down no lower then 75 not sure what size cage you have. my igs is 5x5x3 and multi lighs for heat hope this helps iggirl1

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