Cuti3pi32

Hi,
New to the faunaclassified site but had a few questions on the Cuban rock iguana. Is it ok to feed the Mazuri Tortoise Diet to one of these iguanas. Seen some breeders of these lizards feeding this. Was looking if it’s safe to feed. Been feeding greens and squash and snap peas.
If this reptile is in a huge tank. Is a hide needed and what’s the best substrates for these type. Was thinking easy liner that’s a grey sheet for easy clean up. Temps of 120 basking is there a recommended temp for them. Wanted to use mega ray but these bulbs are very strong on a glass tank. Any advice you can give on setup would be appreciated.