Keep the light and food moderate, and don't transplant to bigger pots. Fabric containers let the roots air prune and keep the plant from circling the pot which allows for a healthier root ball.

The plastic ones you're using will eventually require you to re-pot and do some root pruning. At that point I would switch to 2gal fabric. You can keep Mom's in them for a long time. Usually by the time they get unhappy you've taken enough cuts off them to start 5 more mothers anyway.

Then Mom goes into the flower tent and the process begins again!

These are the 1st clones. I put the original mothers into the flowering room. Maybe I'll continue that for now.