my 150 g retic eats small rats 10-14 days...35 granms a week is not ok! it should be eating 1/3 bi weekly so about 120 g ....medium rat bi weekly.....go to 1/4 when you git large rats 5-6 ft...rabbits 7-8 ft go to 1/5 bi weekly or double that for monthly.....8-10 ft 1/7.5 bi eekl;y....adult 12-14 ft...10 percent bi wweekly o 20 percent monthly......can feed less or more despending on weight..thats for a male retic...females would hav longer intervals between amount of food hanging