evz355 said:has anyone used a hps and a mh through an entire grow. i am wondering if i should use just mh for veg and hps for flower or to use both together for an entire grow
ms4ms said:I am going to do my next grow with metal halide only.
Growdude said:From my experience the buds were slightly smaller just not as much girth but the trichomes appeared to be more abundant.
Maybe just shows up better under the whiter light? doh no
BBFan said:Hey Growdude-
I've read in several places that MH during the last 2 weeks of flowering increases trich production, so it's probably more than just the whiter light.
Another member here says that using UVB lighting during flower (in careful and limited doses) also increases trich production. RC Clarke in his book on MJ Botany confirms it. Have you ever tried it?
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