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Thanks for the equation, Snaps. I figured as much. Winter time would be no problem with excess heat, but I don't know if Summer would be a good time to use 1200w

Well as far as ducting goes, I'd simply connect two identical 6 inch cool tubes. Simple straight run ventilation. The 6 inch vortex fan should be able to handle it

Thanks. Do you have any idea what the difference in heat output would be vs. a 1000?

Greetings, I am updating my grow space with new equipment and would like your opinion. I have a 4x6 flowering space, and I would like to use wither 1 - 1000 watt or 2 - 600 watt lights. I know that 2-600s equal more lumens and better coverage. I was TOLD at the shop that 1 1000 watt light gets...

Thanks folks. I may have been misunderstood. I have been growing in soil for ten years and do it very well--it's just that I have a small space (4x4) and a desire to max out the space wherever possible. I've never used DynaGro before, and bought some because of this thread. That's why I have so...

I understand that, but it's not as if folks wouldn't catch on after frying their crops. I'm just trying to figure out what the proper DynaGro ppm is, considering the average nutrient solution is somewhere around 1000.

Thanks! How much of each do you add per gallon? Why would the feed chart have such overblown numbers? Wouldn't they have looked into that? What is the highest concentration of nutrients in your flowering period?

Hi Home Brewer, I've never posted before, but I've been growing in soil for many years (pro-mix to be precise). Thanks for all the information in this thread. I have a few questions: 1. Are you following DynaGro's feedchart? I ask because I have tap water of 150ppm, and when I added...