There's me telling people ways of ensuring the water they use on their plants is well oxygenated and here's you telling them they don't need to bother - they sure as hell do.

Erm, there's no such thing as a dual spectrum bulb by the way. If there is, which TWO light spectrums does it output? I think you'll find it outputs the full spectrum, with certain colours enhanced - that doesn't make it dual spectrum either.

The term 'dual spectrum' bulb is an advertising and marketing term, it bears no relevance whatsoever to what light spectrums the bulb outputs and in what quantities.

And I don't agree that a 2,700k bulb will give you a higher yield, in my opinion a 4000k bulb is more balanced in it's output and will give better results than a 2,700k which outputs far too much in the red spectrum.

The universally agreed mix of lighting in flowering is 2 HPS to 1MH.

I could go into a very long, detailed and turgid explanation of why this is the case and I'm sure you'll thank me if I don't. Let's just say that in nature, plants DO NOT flower soley under 2,700k spectrum light - it's a mixture of blue AND red. Think about when they flower in nature - it's in the autumn generally with the shorter 12 hour days and whilst the first and last 2 or 3 hours of light is primarily red in spectrum, the sun spectrum inbetween those times is the predominantly blue spectrum of 6,400k.

The reason HPS lights generally produce higher yields than say Metal Halides has nothing whatsoever to do with the light spectrum they both output and everything to do with the fact that watt for watt HPS outputs a lot more lumens than Metal Halides do. Lumen for Lumen there would be very little difference in yield between HPS and MH.

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Mandala Seeds Kalichakra and Satori Grow
Holefillers 0.6gram per watt 64w Micro Grow

YOOOOOOOO. first off, i would advise against miracle grow, that is if you want tasty tasty nuggets. that nitrozyme stuff sounds badass, but only for flowering i would say. during veg you want more nitrogen than anything else. i f i were you i would try to go as organic as possible. you have worm castings thats good shit. and mycorrhizae or whatever sounds awesome as hell. so why corrupt your little darlins with miracle grow. see if you can find some neptunes harvest, or something nice and organic.

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Hey Uncle Sam,
I am not a pot grower, i just think the girls look pretty... and smell good

I should look for a organic substitute for miracle grow then. What do you think would be a good source of nitrogen for the vegging? I have a feeling the wormcastings may not be sufficient or perhaps they are releasing the N slowly? Some other fertilizers are smelly like dung and guano.

Cheers

smelly is not that bad though, becuase it means the buds will be smelly, in a good way. use some fish emulsion if you can. look up a thread called organic npk 101

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Hey Uncle Sam,
I am not a pot grower, i just think the girls look pretty... and smell good