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I like it, nice improvement!
glad your back in thie ring! your rooms has always been one of my favorits. Are you still running all lights? Can you give us some stats (temp, water temp in bucket, ph, etc)
I know you probably already have. But this would be one guess for me is, have you calibrated all your testing devices weekly or bi monthly to ensure accuracy? Other than that all I can think or is unballenced nutes/not enough nutes/ ph issues. Good luck buddy hope your plants start looking better. To me they just look hungry as fuck!!! Maybe the MPB's require alot more nutes than you think I know my first DWC I blasted mine with 800ppm right off the bat and they barely had any burn on the tips. I see your plants screaming FEED ME!!! And let your pH swing up and down a bit it will help you plants eat more.
Are you using RO or tap water for your system??
Is switching to Advanced Nutrients out of the question?? Maybe not for this grow but possibly the next? They may be hated by a lot of people because of business practices and other business related issues but at the end of the day their products work and work well together. Ever since switching to DD's nutrient pack (swapping SensiZym for Multizen only difference) my plants have always been lush green and no signs of deficiencies or over doses. Since I haven't grown in the MPB's with anything other than Advanced nutrients I'm not sure how results will turn out, I have done some experimenting with different nutrient lines with plants in the vegetative state and with some ebb and flow RW setups and through all the experiments I have done AN is my preferred nutrient line to use. I feel it is going to take some serious persuading to get me to try another brand for a while.
Good Luck
Giddeon
That is very odd how this is the second time having plants like that. Are you using the same batch of nutes as your last round? It seems like multiple brands are having bad batches shipped out. Sorry if I missed something or if you mentioned that. I have loved your setup since you gave it a go the first round. Always so clean... something I am trying to strive for now.
Hey TF, just read thru your thread, sorry to hear your having issues. What rate ml/gal are you feeding A+B at currently and how many weeks old are those plants? and what else is going into the res?
I run H&G aqua very aggressively in my mpb, I get my ppms up near 800-1000 for within the first 2 weeks of flowering..if anything you might be underfeeding them...
one other thing i noticed is you keep your rockwool cube above the lava rock, I've found its better to cover that cube with an inch or so of lava rock...I also run the same drip rings but just 24/7...
Yes I now have a feeling you are under feeding your plants.
For myself, using RO was never successful, I always had to deal with deficiencies and then was forced to add way too much to my res. I switched back to tap water, allowing a 100 Gal res to sit out for a day or so before mixing nutes and then chilling. I had much better results both in my RDWC and in a past ebb and flow set up.
And yes you are probably right by saying that you didn't feel that, " ... the brand of nute mattered that much," as long as it is a reputable brand. Each nutrient company produces nutrients that will work but each will be used in slightly different way or will react differently to each other in the res and be up-taken by the plants in a unique matter.
So yes, I'm sure there are other 4lb tree nutrient schedules out there but the one posted by DD's seems to be the most user friendly for me at the moment. I'm using his system, Light lay out pattern, and other techniques to grow trees, why would I also not use his nutes he posts to use??
Bobby,
If I said that I hadn't considered the off gassing I would be a fibber. I have no means to disprove that one yet, as I have yet to put in other girls that are not MPB. It is coming real soon. I have that fear in the back of my head that I have yet to meet face to face.
Are you implying that some hoses and pipe off gas themselves? I do use ABS, Sched 40 PVC, some NGW Black poly, and some clear poly for air and chiller. ABS was glued with standard ABS glue and the PVC was purple primed and red hot blue glued.
That just leaves the flooring. That is the wild card without a doubt. We will have to wait a little while longer till I shove a flowering plant other then MPB in there. I am not even gonna give that one any more thought till give it the canary in the coal mine test.
Thanks for bringing a different viewpoint to the discussion. That is always appreciated.
-TF
I had put the 4" cubes into the netpots when the seedlings had about 4-5 sets of leaves on 1/11. They were set back at first till I got the watering correct. They were transplanted into the MPB room at 2.5' tall. They were at 630ppm the week before transfer into the MPB's. Only fed with H&G Aqua Flakes A&B at about 4ml per gal and some Hydro Fungicide. They loved it and ate 50ppm and a few gallons a day up to transplant. The MPB res was the same mix, at 570ppm. The only thing added was a little drip clean. I thinned out the mix a few days ago to 430ppm as per mrdizzle's suggestion based on his prior grows. As I said, the last round when I had this, I pumped up the concentration of nutes, and even tried a big dose of cal mag, since some of the symptoms seem like accelerated calcium deficiencies. I also tried foliar feeds with cal mag as well. No noticeable improvement in disposition from any of it. Bossman also suggested last time to drop the nute concentration levels as well. As far as the cube height, I dunno if that would make this happen, but with that said, you sir have made it to the finish as I have not...
Well I know there was the big controversy over NGW hose off-gassing (by some U.G.U. dude on IC), but I also have/use NGW hose and haven't had any problems with it - might be worthwhile to give his thread a read and see if anything "clicks" with you in terms of the problems he was having.
theres a thread here somewhere about that NGW tubing fucking shit up
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