My male was on and off eating. Sometimes he wouldnt eat for a month and sometimes it was 2-3 weeks but now he eats every week on schedule. He was on f/t also and I would feed him every night and I was giving a recommendation on here to try feeding during the day and ever since I started feeding during the day he has ate every meal. My last 8 feedings were successful and once was while he was in shed! I just turn off the room light and his day light while the rat thaws in water and then when its done thawing I heat the head pointing the electric heater (hair dryer works too) toward a crack in his door and he sticks his head out and waits. A couple times he wouldn't come out so I stuck the head of the rat into his hide slowly and he struck and ate it right in his hide. So maybe you can try feeding during day if you feed at night or vice versa and you could try sticking the f/t rodents head into the hide like I did those couple times.
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