what size pots for 2 months?

so im going to be growing indoors for 2-2 1/2 months tops before I put them outside. ive got a few questions
1. What size pots should I got with? rooms about feet tall. growing 8-9 plant in a 5x5 room under a 1k watt MH.
2. I going to be using a soil mix that ill be mixing myself. Base soils going to be some premium potting soil with loam from a local landscaping company. Should I use the soil mix that im making(itl have loads of nutes/amends), or just fill the pots with fox farm or something?
3. how tall should I expect these plants to get in 2 months? if yall had to guess. man dif seeds with different genetics

thanks guys

or just a bag of roots organic for those 2 months and feed it fert when needed, that's also an option..

I would want to put them in 5 gallon buckets but start in plastic cups to be safe. I use potting soil with foxfarm happy frog granules (all purpose) I think the mycorrhizae help a lot. I haven't used a 1000 watt but I would think in buckets they could get a foot or two tall in a couple months with regular watering and good conditions.

so you think thyll be good in 5 gallon buckets till I putt them in 100 gallons ouside?

ill be starting them in rockwool btw. def using mychorrizae in the mix

up potting.. start in a small container and every couple weeks xplant into a bigger container... up potting will allow the roots to use more of the space.. if you start in a large container the roots will be concentrated on the bottom of the container

BeastGrow said:

up potting.. start in a small container and every couple weeks xplant into a bigger container... up potting will allow the roots to use more of the space.. if you start in a large container the roots will be concentrated on the bottom of the container

Click to expand...

makes sense. so, from rockwool to 1 gallon, then maybe a 3 or 4, then up to 10 or something? just guessing here lol no indoor growing experience/only grown once before with a 5 gallon bag, from rockwool straight to the bag.

1 gallon of pot per month. 2 - 3 gal max. 5 gal is overkill for 2 mo.