I should think the plant would respond somewhat better to the HPS lamp you mentioned, than to the fluorescent lamps on the sides. Is there any way you could switch the fluor. to the above position, and move the HID to the side? You would need to obviously switch it from side to side, if space doesn't allow you to rotate the planter. Or, you may want to try increasing the distance between the HID fixture and the tops of the plants, if you can. Have you considered downsizing to a 75W? I'm next to positive they are available in a MH, not sure about an HPS. As for the pruning, I really don't know. I could take a comfortable guess, but I'll let someone more knowledgable touch on that. Good luck... SCHUCH IVAN wrote: > > OOPS ! the plants should be between 20 & 30 cm tall !!!! > > > > I am TRYING to grow Manzano, Guajillo and some other unknown chiles > > indoors in a flood and drain system. The plants are between 200 and 300cm > > tall and are starting to branch out. Due to limited space they are spaced > > 300cm ( 1' ) apart. > > > > > >