I bought these seeds and I am pretty sure these are supposed to be purple serrano. It has purpleish leaves. The problem is they are going from purple to green to red but are still very small, like the size of a small marble or a pea even. There are quite a few peppers on the plant but they have been there for a few weeks and have not grown at all? They really just changed colors. I am not sure if they gave me the wrong seeds and its a different plant or if maybe too many peppers were produced too early and is stunting their growth? Any help would be appreciated. I have no clue on how/when to pick them or if I should pick some to allow the others to have the ability to grow bigger. THanks!