what size pots for chilis and peppers in the greenhouse?
I find 25cm diameter is fine. I do work up to that size though by re-potting peppers/chilies a couple of times as the roots begin to fill the smaller pots. Potting directly from seedling into final size pot seems to give them a bit of a check in growth.
I planted mine in 6inch pots, but the deep ones like roses come in.