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Have anyone ever tried to change the color of buds or the plant in general by putting ph tested food coloring in the water?

Wat is the ideal PPM?

Thanks guys I appreciate the help. I am tight with money basically only with the light source. I am trying to consider my first light choice. Whether to stock up on some 65w cfls or wait till i can afford sum nice shit like a 400w with a ballast and hangers n shit.

Ok so I want to start a small dwc grow in a closet. Is it possible to only grow with a 400 watt hps bulb for about 30 bucks on eBay? What would I connect it to? I plan to just hang it over from my dwc bucket. All advice greatly appreciated

This is amazing