Awesome!
Temps - Mid to low 70's are ideal. Anything over 80F can become dangerous to your little guy/gal quickly.
humidity - 70 - 100% - I would aim for the middle and use that range as a gauge. Anything in the 50% range without access to water can quickly become fatal.
Fruit flies - Culturing your own is super easy. I would always make sure you have more flies breeding than you will need incase you have a culture crash on you. Here si an article on this site for fruit fly culturing.
Frog Forum - Fruit Fly Culturing, Care and Feeding - Everything you need to know about Drosophila
Also Bill (deranged chipmunk) uses the below home made formula.
1/4 cup instant mashed potatoes (I get mine at the dollar store)
1/4 cup white distilled vinegar
1 tsp confectioner's sugar
1/4 cup hot water
Mix together, should be a nice think creamy consistency. Sprinkle some yeast on top, add your climbing material and seed.
I am going to try his recipe after i run out of Josh's Frog media.
I am also going to switch from the Deli cups to glass jars with modified lids once I run out of the stock of cups I have. I like the idea of reusing containers instead of adding cost and waste to my operation. Time will tell if I regret this or not.
Place the temp/humidity probe about 1/2 down the tank away from the heat source. Try not to get it wet when misting as this will cause the readings to become wildly inaccurate. If it does get wet and go crazy just remove it from the tank and wave it around like crazy to dry it off and it should return to normal operation.
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You frog is awesome, he looks like he is loving his new home! Got any pics of the new frog?