Yellowing Fans....Toxic Salt?

It is still too early for this to be happening, maybe someone could give me some advice..

-indoor or outdoor - indoor
-soil, soilless, or hydroponic - soil
-specific medium - MG and perlite
-Soil type/brand
-Hydro/aero/soilless system type
-Anything you have added to the soil, in flower, molasses, dynagrow, guano(top dressing)
-Soil pH - yikes, not sure
-Water source - crystal geyser bottled water
-Water pH - again, not sure
-Age of plant - 6-7 weeks of flower
-Type of fertilizer - dynagrow
-Rate of application 1/2 tsp per gal
-Lighting source and distance from plant - 400w hps 18"
-Temperature (both day and night if you are running a dark period)on/79-81 off/60
-% Relative humidity - 16-45
-Lighting schedule 12/12
-Type of ventilation your room has - big box fan in(filtered) 6" exaust top corner of cabinet

I read not to use bottled water because they contain alot of salt. Possibly 'Toxic Salt'

Ive just read that your in 6 or 7th week of flower,Im not sure how long your strain takes, but in my opinion you should be getting some yellowing-this is normal as your plant is using the last of its nitrogen supplies as its life cycle is ending.What you dont want is a dark green plant at harvest.Hope this helps.RM.

Switch to plain tap water to mix your nute solution if you don't have a good reason not to.
Your humidity dips quite low, but its funny, the plants don't seem to be suffering unduly. In week 6 of flower you are nearing harvest anyway as rastaman pointed out and the signs of rootbound-ness that the plants are starting to show, and the bit of 'claw', isn't really a huge problem unless you are running a strain that takes more than 2 more weeks to finish. If it is supposed to, then I'd flush with pH adjusted tap water (check runoff to see how you need to adjust it) to clear out any extra crap in your soil and ensure that the soil pH is correct, and then immediately feed with a weak solution of your fert.
What is the NPK # on your dyna-grow? The first number should be quite low if you are feeding it in flower.

I am using Dyna-Grow Bloom 3-12-6, one thing I didnt mention, this plant is in a 3-gal bucket that I drilled holes in all over it. If this is a prob I have a few extra buckets laying around to double it up, should I?
Thanks for the info

Should I go ahead and trim the big fan leaves and others to increase air flow and bud production? And what else can I do to get the plant to focus on buds?

At this point, it sounds like you are doing things pretty well. Sure you could use larger pots, but I'd only re-pot if you have more than a week and a half to harvest. Leave the fans on, and you could add a bit of molasses to bulk up the buds.
And again, check runoff pH and switch to tap water if you haven't already. You may or may not need to flush; with the extra holes in your bucket, flsuhing will be a BREEZE so you might as well do it, and feed immediately with a dilute solution (1/4 strength) of your fert as the final step.

Molasses has always been a part of my flowering plants feeding!! What about 3% hydrogen peroxide included in every watering? JerryG swears by it, I have used the HyP in veg but not flower....

Stinky, what are your thoughts on these 3 seed banks:
1. Hemp Depot
2. Nirvana
3. Dr. Chronic

I have seen random posts about all 3, I just trust and value your opinion

Of those, I've only ever used Nirvana and I have had all orders delivered in a timely fashion and complete. I haven't ordered seeds in over a year, though, and hear that they have changed a bit. So I can't really help too much on that.
I've also never had cause to use peroxide for any reason. You shouldn't have to unless you know you have root rot.

Stinky,

Just did a flush on the 3 plants and the run-off was NASTY!!! I know you said 3x the volume of water/pot, but with this being in the basement I couldnt (should have, wife would thank you for me working out!)make the trip up/down SOOO many times, plus I wanted/needed to watch the Pattys - Giants game!!! So I put the 3 gal buckets in a tall garbage can with the same diameter and put 3-4 gal of water thru, let runoff be clear than fed with a 1/4 solution of bloom fert. I only have 2 questions with a flush:
1. how does a flush differ from "over watering"?
2. have you ever used the runoff on any outdoor plants or trees/shrubs? Such as boxwoods or the like....

Also, did you see my post on the "soil bubbler" and my logic behind it? Some feedback on the experiment would be greatly appreciated. btw, how is Klondike bar still posting?! Hate to sound like I know what I am talking about, but I have been reading for months prior to posting!!! So, if need-be talk to me like my wife would - tell me i'm wrong!!

Thanks - J-E-T-S fan

PATRIOTS got LUCKY!!!

KB has been given several chances to grow the fuck up and blew every one of them. He's out of freebies and won't be back.

Flsuh differs from over watering in that over watering happens when the soil does not have a chance to get fairly dry a couple times a week. You should give a nice weak watering of your fert at 1/2 what the bottle says, then let the plants do their thing, use up the water in the soil, get on the dry side (stop short of wilt), and then resume your normal feeding.

I wouldn't use runoff on boxwoods since in my experience they can be twitchy and scorch easily. Plus you don't know quite what the chemical profile of the liquid is, and chances are that it's got salts in it that aren't all that great for most plants. So I'd say just toss it. I know... re-use when possible... this isn't one of those times though.

I didn't see the bubbler thread. I'll go poke around.

take care,
pats fan. :D