Since last week I own two WTFs. One of them eats quite happily but the other doesn't seem that interested in food. I've seen it eat two crickets on the first day, but I cannot confirm any other meals.
I found stool of which I think it's his (or hers) and it looked ok, dry with some recognisable parts of cricket (wings).
The temperature in the coldest corner is between 19 Celsius (66 Fahrenheit) and 25 Celsius (77 Fahrenheit). The humidity in that corner is high (>90%) but I've not seen any droplets forming on the glass anywhere so I guess it's quite a bit lower in the rest of the tank.
What do you think? Should I worry or just keep an eye on him?
The one in the front is the one which doesn't eat that much.