Sorry but too much risk for me. I forget where I read it (I think it was on Allen rapashy site) but over 80*F can actually be leathal to your crestie. Or cause extreme amounts of stress.
I am not trying to bash you and I'm just speaking from my own personal experience.
Also I have heard so many horror stories of people feeding baby food and then there crestie won't touch there cgd. Then you have to go through the whole "little by little cgd with baby food till it's just cgd with water" and I'm not really into that.
Why risk it when there is a food that has ALL the nutrients they need to thrive?
And temp wise and light wise is for your viv. It is not really necassary. Like I said, three years of breeding cresties and I keep them at room temperature in my basement. 70-78 in the summer and 65-70 in the winter. After about a 2-3 month cool down I'll turn on there uth set for 75 and the thermostat shuts it off all summer.
Again, just speaking from personal experience and reasearch.