Yes, but if you get one root problem it will likely spread to the other plant. if a plant has a problem like insects you have to treat both. If one grow much faster than the other (can happen in the same pheno with autos) you will have to play games getting the lighting to feed both plants. You will not have the luxuary of separating the plants. I would recommend planting them on opposite side of the pot instead of together. That way their roots do not compete for space and nutrients too early and affect their stature. What happens if on hermies on you? YUK! Having inspected the roots of the Red Poison I wish someone had a Root Heath photo log. My main root was about 4 inches deep and shaped like an "L" with the lower part only being about 1/2 inch long. The rest of the roots were very fine and not clumped up like i see on many pics. I may start a pic of roots and describe how it grew. The Auto grew a solid 30 inches and produced very well. Only on Happy Frog and Beastie Bloomz nutrients.