2 Plants 1 Pot.

No, no, no, don't do it! Have tried this a few times in years gone by, but they compete for everything, root space, nutrients, water, light, .......... everything! Instead of getting two full sized plants, you end up with two plants that only grew to half their potential. Even when growing in the ground directly, plants need to be a minimum of one point two metres/four feet apart to prevent competition. It might seem convenient, but each plant will have its own needs water wise, nutrient wise, even if they aree the same strain and both will grow at different rates. Pots are cheap, don't limit your potential harvest by being a cheapskate!

Unless it's a good 50x50 apart your asking for trouble buddy, root rot, and if you get 1 prob you'll have it in both plants so all round it's better just to grow in 2 8-11l pots for autos for fems 11-14l is enough for indoor grows. Outdoor 5 gall9n material p9ts for easy transport. But yeah grow in 2, that way you can push 1 plant and keep it safe with the other. If you have serious prib in 1 pot you'll have both plants having same prob. Always good to have sep grows, even with DWC-RDWC 1 mistake and all your plants suffer. Good luck pal.

It's not advisable unless you have a very large container. The plants will fight for root space.