For now give him as many as he can eat, i would estimate aprox 20 1/4" crickets every day. You should feed them as soon as they wake up, or as early as you can. You should gutload the crickets 4 hours before, i usually feed the night before when i feed the crickets in the morning. Try not to feed him any later than 5 hours before your lights go off. When he turns 7 months old, limit the intake to about 14 crickets of the size between him eyes (maybe even alittle smaller). Then when he turns 18 monthes old, reduce it to 8 every other day. I usually dont go by age but by how much they weigh. I weigh them weekly and when i notice them starting to stop. I will reduce food intake.