I fed first in the viv and then when he didn't eat I moved him to a tub, left him be and then tried feeding in the tub, still refused a meal.
I have feed in the evening, midnight and even tried near dawn
Tried out in the open, under the hide and even leaving the meal under a hide to see if natural instinct would take over.
Yes I am sure it's warm enough, as I said I have probes tracking outside temps and humidity as well as a probe on his UTH tracking that as well as a temp gun. UTH is 90F outside temp stays within 80F-87F throughout the day and humidity stays over 50% and reaches 60% when sprayed and moss raises it to 70% as needed for shedding which is why he was able to shed well, bless moss.