Hi there, if you're referring to VV1 I would suggest you not increase your population to quickly until you have enough Tech points for level 3 of farming. The children eat just as much as the adults so that would make you constantly run out of food for either VV1 or VV2. If you already have level 2 of farming you should wait until you can get level 3 before increasing your population. Hope this helps and good luck :).

~1 Luv~
sha