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I am looking for a new Ph meter (preferably self calibrating, but not necessary) for my Hydroponic DWC Setup. I want something that is around $100 and above all else reliable. Anybody had any luck? Suggestions? Thanks in advance.

I have a plant that has grown way taller than expected and I am currently short on room in my tent. The plant has grown within three inches of my 400 watt hps light! I realize the recommended distance is around 1 ft but I cannot move my light any further from the top. The plant is flowering...

I'm growing in two plants in a fair sized grow tent and the plants have just started reaching out (flowering). The two plants have gotten gigantic and the branches from the two have sort of windrowed or interlocked together. Is this going to be a problem? They both have at least a sq foot...

to stick the Ph meter directly into the reservoir for readings or to isolate a sample and then try for a reading? I have been noticing that there is a few point difference in each of the methods. Is there any criteria for taking a reading? I'm using a Checker by Hanna digital meter.

I want to transplant some of my babies from soil to a DWC system. My question would be; what would be a good age to do so? They are between 1-3 weeks old right now.

Would it be horrible to put this plant into 48 hours darkness now? I'd like to harvest in roughly 2-3 days. Its about 10 weeks old. I want to harvest early for a head high but am worried that this may be too early.... ??

What is the maximum amount of time I should leave my plant in the darkness before harvesting? I see 2 days all the time as optimal but would leaving it in darkness for up to 5 days be horrible? This is what I'm working with.

What is the maximum amount of time I should leave my plant in the darkness before harvesting? I see 2 days all the time as optimal but would leaving it in darkness for up to 5 days be horrible?

What do you think?

I used quite a bit more than is necessary trying to lower my ph level. A day or two later the top of my Cola looked burned. I thought initially that it was heat stress so I moved the lights back a bit to no avail. Since then the leaves have been browning but only near the top. Can anyone...

I am on day 27 and just want some opinions on my progress. Do these flowers look to be of appropriate size for the time?

I'm new to growing and am having some problems. My plant is about 1 month old and up until about a week ago has been growing great. The plant's leaves have recently started drooping which I understand to be a sign of over-watering. There are now a few deformed leaves curled crazily which...