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I've got family coming up and were getting.... how do you say. BLACK OUT DRUNK!:blsmoke:

Sorry if this has already been posted, but I couldn't find anything. (the search feature isn't as good as I had expected) This is the rate of photosyntheses at a "regular" room level and the rate with CO2 at 1500 ppm. When you increase your CO2 to 1500 ppm it triples the rate of...

I'm a fan of the old saying "if its too good to be true, it probably is" well I found a supplier in china that has MH/HPS bulbs for half the price. Anyone use anything from china? Hows the quality? Thanks in advance!