NEWGROWTH! Nice thread bro.. I was curious ive seen and heard alot of things and im really tightening down my grow. My question is what are the actuall ppm levels people should strive for in the different stages especially latter stages of flower?
Any help would be appreciated
Nutrient concentration is dependent on plant strain, size and many other environmental factors. For example Ak-47 will not tolerate the same nutrient levels as White Widow. Here is a good guide to determine what nutrient concentration you should be running.
1.Water level drops PPM goes up: Drop your nutrient strength in relationship to the PPM rise.
2. Water level drops PPM stays the same: You may be able to fine tune you nutrient strength, if growth is vigorous leave it alone.
3. Water level drops PPM drops: Raise you nutrient strength in relationship too PPM drop.
note: marchold and curious.george are both me. I just changed to a cooler forum handle.
So you think its all the beneficial fungi and bacteria eating the sugars and upping the PH?
Maybe, I have not worked with coco myself and have limited experience with organic hydro, it was just too frustrating and unpredictable to me.
Daylight photosynthesis produces hydrogen ions which can cause the nutrient acidity to increase (lowering the pH). At dusk photosynthesis stops and the plants increase their rate of respiration and this coupled with the respiration of micro organisms and the decomposition of organic matter uses up the hydrogen ions so the acidity of the solution tends to decrease ( pH rises )
Can you up the nitrogen ratio in you res a bit? See if that helps, I think the microbes are using up nitrogen faster than the plants and upping your Nitrogen content may help stabilize your Ph. Maintain the same PPM but add more nitrogen.
My PPM stays amazingly stable. I use 1000 ppm or 1200 ppm and the PPM does not drift more than 100ppm in 2 weeks. It almost seems hard to believe that when there is only 10 gallons left it is still at 1250ppm.
Well eliminate that possibility
because drip emitters can get clogged an I like to keep it simple. Would drip be better? I read somewhere that when coco dries it ups the ph? Is this why?
Its possible but I always thought quality coco-coir was treated and was a rather inert media.
Hmm... Is it not already right?
Thanks!
I was thinking of stopping with the beneficial fungi and doing my next grow with h2o2.
Sounds right to me . . .
H202 will not work well with coco, it breaks down too quickly.
I was just wondering, keep the flood table if its working!
Good luck man! I'll see if I can find some more info about coco, I think a buddy of mine is using it I'll ask him.