i would feed it anyway they can last awile on reserves and next thing you no it is deflating allot and to late.if you have a huge mature refugium and great lightin he will not need to be fed more then once a month but we can only mimmic the sun ,zoo,and phyto.in the wild maybe they eat a big meal once every six months but they have a great mother to fall back on inbetween.i would start off very small once every three days then once a week small bits of food.my rbta gets fed by the clowns every day at feeding time and i also feed just the nem twice a week.