Using Metal Halide and High Pressure at the Same Time

[Goshawk]

Has anyone ran both metal halide and high pressure sodium bulbs at the same time during both veg and flowering? If so what are your thoughts and results when compared to running only metal halide during veg and then switching to only high pressure sodium during flowering?

 

[RandyL]

I've done it, and the plants seemed to do a bit better with having the different color spectrums available to them. I had used only MH for veg and both for flowering.

 

[WillyBudz]

I have done both but only use in flower room now. I have a 400w MH and a 600w HPS in an 8x8 room. Actual grow area of plants is 6x3 I have a somewhat perpetual going on, when I harvest I do 2 plants at a time, then I shift all towards the HPS and add 2 new plants under the MH side of the room. More or less they start flower with alot of MH and some HPS and move towards more HPS every 2-3 weeks


......................MH.....................< 5FT >.........................HPS

>>...............2 new...........2 >>..............2>>.................2(harvest)

Used to use 400w MH in veg and 1k HPS in flower, they are all DWC bubble buckets, this setup works better than a 1000w HPS alone in the flower room. I use some ancient t12s for veg now (robbed my workshop) two 6 bulb 40w for 480w total in veg room, covers enough area for 8 plants in veg.

*I grow 4ft tall plants (plus height of 5 gal buckets) due to height restrictions in cellar.
DO NOT let Sour D or any other sativa get to 24"(plus 5 gal bucket height) before you put into flower when your ceiling is only 6'6". It is a nightmare having a 7'(5'6" +5 gallon bucket height) plant in a 6'6" tall room.

WillyB

 

[Icemud]

I am using both MH and HPS during veg and flower and my plants seem to be very happy. I am only on my 1st grow, so I do not have a control group to compare to... I have read that for those that have both a MH and a HPS in there grow room, the plants that do the best are the ones where the spectrum's meet...