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alot of people talk about calmag and how it is common and people need to be using this magical supplement but i dont get it. isn't it more due to a lower ph causing calcium to be locked out. whats worse is when i hear things like "led growers always need calmag". im thinking, how does a type of...

well the title says it all, they go on at 6 am and off at 12am, but they start going down to sleep at 9pm. recently I burnt them with nutrients a bit, could this be the problem? no point in posting pics really, unless you would like to see them :eyesmoke:

http://www.greenlights-ledgrowlights.co.uk/html/lights/budzilla_288_int_led_grow_light.htm does look pretty cool... i especially like the word UV in there

recently i have noticed some areas of "hot spots" or pH fluctuation on my small plants, or at least i think thats what it is. my tap water comes out at 7.5 and i push it down to 6.5 with some vinegar, but obviously after a while it doesn't agree with the soil (even though its "multi-purpose"...

So this being my second grow (first https://www.rollitup.org/grow-journals/482566-pair-weeds-2.html ), I have more insight. Never finished my old journal unfortunately... got a little carried away with things, made 1 ounce on one plant in the end. 300W LED (that actually draws 300W i tested)...

pH 7.45 Alkalinity mg/l CaCO3 144 mg/l HOC3 176 Calcium mg/l Ca 79 Magnesium mg/l Mg 8.6 mg/l CaCO3 232 Total Hardness Clark° (UK) 16 this is a report for the mg/l or ppm in my area, does this mean that my ppm will be the max listed? (232) i have not ph'd or used...

I have been looking at many reflectors and im unsure what would be the best, i have looked at Parabolic, Diamond and a Supernova reflector. I am just wondering what experience anyone out there may have had with these, and what you might recommend. I just don't want to buy something that looks...

Hi there, i'm from a little island in the west of europe... i just joined the site a few days ago and i love it for the amount of resources on here. currently undergoing my first grow... and hoping for good things! :-P

So I have started the magical process of growing... originally I bought one 90W LED light for my other herbs, thyme, basil... but soon I realised i must grow more potent and useful herbs... After collecting my LED i found that that had shipped two of them instead (someone will be losing their...