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I know this is an old thread, but I'm a long time H&G user who praises them normally, but I am suddenly having this same issue. When I do my normal mix according to the nutrient calculator my e.c is really low. This is the second run where I've had this same issue from the same 20L of A&B.

Seems like there is a lot of confusion on here about PM and sulfur vapes. Here is some great info about PM, everything you need to know about it is on this site: http://www.ipm.ucdavis.edu/PMG/PESTNOTES/pn7494.html (search around on there too) As for the vape, I've found that for most PM...

I run it in a recirculating top feed system. Things get a little funky though. It's ph stable but I do notice bacterial blooms in my res. The plants love it. I'd be concerned about bacteria clogging your emitters though.

If the tap water is 580 then you have some pretty hard water. Your most likely getting nute lockout from this. Your going to need an RO filter. There is also a hardwater version of GH 3 part nutrients micro, which may help of u use GH 3 part. If you use an RO then remember u have to add...

Mouse is right. Top Booster is designed to trigger a hormonal response. It basically tells the plant that it's dying. If you use it too early your plants most likely won't finish at their full potential. Same thing if you use Bloombastic too strong, too early. You get nice looking buds, but the...

Mine are at week 4 and within the past week my hairs have gone 30-40% red. I'm doing this run in a flood and drain system, the last run I did was in Sunshine#4 and I didn't notice the hairs turning red this early. I just started hitting them with Bloombastic a week ago at 1ml/gal and I'm...

I'm going to tell you straight up. I do a lot of consulting work in CO and CA for industrial grows. There is a reason none of them I have ever been in, run DWC. It's a major pain in the ass. I also run a huge hydroshop out here in Colorado. 85% of my DWC customers are always having issues...

Looks like N to me. Usually with N it will be a solid uniform yellowing like that on the bottom leaves and progressing upwards effecting larger older fan leaves first.

You got to slow your roll if you want to grow.

Bloombastic has a lot of P and K in it. Strange that you would be getting a P or K deficiency if your using that. Also the CNS has got plenty as well. Some plants just go purple like that. It's their fall foliage. What's strange is the leaf tips, they look burnt as all hell. You sure your not...

Can you get a close up of some of the leaves?

Early onset of N toxicity. Flush and back off the nutes.

That stuff is really hot. I'd start out 1/4 to 1/2 strength and go from there.

Multiple deficiencies like that is either lockout which could be from PH, but I'm guessing you have some root rot going on if your water temp is near 80. If your PH fluctuates but stays within the desirable range it shouldn't be a major problem. RO'd water shouldn't swing like that though. Are...

It's not hard. MI has MMJ laws. http://www.emedicalmarijuanacard.com/michigan-medical-marijuana-card/

Do they just have hairs on the main stems at the internode or full on popcorn buds?

Early Harvest makes anxiety bud. Use a Microscope. Wait for 20% rust colored trichomes, no matter what color the hairs are or what the seed company said. Go off of the trichomes.. Then pull. Hang it a few days, until your stems snap when you bend em. Then I put in a paper grocery sack a few...

Yeah they are exactly like smart pots. The Geo pots are just put together way better.

That's completely subjective. Some people like it some don't. I think properly grown NorCal outdoor tastes the best, but I've had tasty hydro as well. For potency hydro crushes it.

Not in hydro. 5.5-6.3 is correct pH. 5.8 being ideal. 7.0 is too high. In soil you can run the PH high like that but not in hydro you will get lockout. Lower PH is ALWAYS better than higher PH. Temp is way too high. Best rule of thumb is 70/50. 70 degrees and 50% humidity. Bring humidity down...