Quote Originally Posted by dejayou30
I have a Master Kush plant that is about 3 months old and is on day 17 of flower. I have noticed the big fan leaves have started yellowing very evenly, and it is a dull color of yellow. Some of the big fans are now getting tiny brown spots, and it is also starting to spread to the other newer growth too.

Its dark time right now, but I will have pics ASAP. But if anyone has a clue by this poor description, please let me know so I can take action right when the light comes on. Thanks in advance! :thumbsup::jointsmile:

Here's my stats:

Approx 3 month old plant, day 17 of flower
5 Gal DWC
2 4" cylindrical air stones with a bubble rope around the outside run off a 19W industrial air pump.
Sits in 2-3 Gallons of RO water with 400 PPM Pure Blend Pro and 200 PPM of GroTek CalMax
Have been foliar spraying every other day as of day 14 with Dutch Master Reverse (2 applications so far)
67-69° water temps
78-85° Air temps
35-45% RH
Master Kush seems to do that alot, but I usually keep giving them plenty of N. Botanicare has a good product called Power plant. I would add a little of that about now to your mix. I usually add Power Plant first then the flowing food after I mix the power plant. You may be able to just use a bit more of Cal-Mag by Botanicare Its also really good when using distilled water, but if your using tap water, Power Plant I think would do it for you.