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Since I've gotten so much help on this thread - thought I'd ask some additional questions. I am starting to get some yellowing in the top leaves (week 5 since I flipped the lights) I expect the leaves to get yellower at this point in the game but typically towards the bottom, Is this typical...

Thanks for all the help -- ordered up some hydro organically elements cal-n-mag, going to give it a whirl

No lime in the soil Used it straight out of the bag - just a added a little perlite, 3gallon bags

San Francisco tap water http://sfwater.org/index.aspx?page=634 Calcium ~15ppm Magnesium ~6.1ppm

no - only 1-1.5tsp/gallon tried 2 and it burned as you can tell by the pic

Here's a better picture of the stem and leaf, this is the wors one I could find, majority look great but noticeably a shade lighter than the other plant which is still a deep green

1itsme - correct I'd like to stay on my current FF program but supplement some nitrogen to one of the plants

Bringing this thread from the dead... waay dead I use tap water - in SF according to the utility the water averages 6.1ppm magnesium and 15ppm calcium based on my brief research - my plants would still benefit from CalMag right?

I have a pretty vanilla fox farms grow going FFOF big bloom, tiger and grow big, just flipped the lights yest One of the plants is doing great but the other is starting to get less deep green and closer to a lime green. Based on my research this is most likely a Nitrogen deficiency, I tried...

Is -25 sufficient for a complete purge?

to the top.......

I went to a new dispensary for clones and sure enough found some mites a few weeks into veg. I am about 1 week prior to flipping the lights to 12/12 so want to make sure I take care of these suckers before it's too late. I bought Azamax (same active ingredient as neem) as well as Captain Jacks...

Thanks for the help guys, last question - obviously I am going to clean the tent well after harvest but how long does the pollen stay active? Just don't want to risk pollination next time around..

Yeah I just pulled a full seed from one of the lower buds, you can see it reflecting light in the middle of the attached pic..

any feedback?

Cool - I did mean trichomes not pistils, typo on my part. I am 99% sure it's a hermie since there is some visible seed development in the lower buds (still white and soft) but definately not typical bud. The Blue dream doesn't look affected at all. Not really worried about the seeds/pollen since...

I am growing a Blue Dream and Bubba Kush in a small tent, I am about 65 days from flipping the lights and am running about 30% amber pistils on both. This is my second grow so I am new to this but after a close inspection it appears I am getting small seed sacs on the lower growth of the Bubba...

oh wow - missed the year of your post, got the day right though..

I have an OG kush and Blue Dream in the same tiny 2X2 scrog tent the OG kush has had PM for 4 weeks and I have been controlling it with Serenade with mixed results. The blue dream is totally immune and the infected leaves are literally touching it. Moral of the stry Blue Dream is extremely PM...