Starting a Feeder Colony (or Colonies)

[Wiggles92]

I had my asf's 1.3 in 10g tanks, then I started breeding rats, fed off all but 1 colony asf, moved them to a 20L critter cage.
The rats are 1.5 in 40g critter cage, and all the left over 10g tanks are maternity cages.

I'm just waiting, as I have been for months, for this man of mine to build my rat racks

Yeah 10 g would work at first but not with babies growing up.

I have mine in concrete mixing tubs so I dunno.

Okay, thanks for the advice. As far as empty aquariums go, I have five ten gallons, one 20 long, one 55 gallon, and one 65 gallon, so I think I should be fine for both the ASFs and the rats.