Your*. You can start feeding him every 3-4 days at a year old. Poppy, what do you mean by 2 days apart?
They are full grown near 12-18 months of age, your little Gus looks great and very healthy for his size! I would start feeding every other day at this point and 3 days apart at 12 months (Wait 2 days feed the third day) Finally 3-4 days (Wait 3 days feed the fourth day) apart at 18 months.
Good luck cute little Gus!