PH is rising

[calvin.m16]

Low K and a couple others cause that as a symptom too. I'm mainly looking at that pale one and seeing a starving plant.

Trying to adjust the pH of pH Perfect nutes screws them right up and basing treatment on runoff pH is the road to ruin. It's just a balpark number and most people don't know how to do it right to at least stay in the ballpark. Totally unreliable.

Yes another thing I learned running AN back when was avoid mixing other brand products with it cause it wont always hold PH if you do. I quit using AN because it burns the tips of the leaves and makes my concentrates come out dark compared to CYCO PLAT. Have you ever had AN cause that weird necrotic burning on the leaves? I experienced it even with running much lower EC... Perhaps it's the type of Nitrogen(s) used?

OP Not trying to steal the thread sorry.

 

[lusidghost]

This commonly happens if you're using tap water with a high alkalinity. Like myke says, it's not an issue unless you see problems. Your plants are able to absorb nutrients throughout the 5.8-7.0 range, honestly, exposing them to a range of PH is a good practice in hydro. Are you seeing any problems with your plants? I've heard that FoxFarm coco can start with very high PPMS, so any problems you are seeing could be related to that, if you didn't flush it before you started. By "flush" I mean, run plenty of .8 ec nutrient solution through it to wash out any extra salts that some brands of coco start with.

This is one thing like about switching to tap. The plants seem to like the drift through the different ranges.

 

[calvin.m16]

This commonly happens if you're using tap water with a high alkalinity. Like myke says, it's not an issue unless you see problems. Your plants are able to absorb nutrients throughout the 5.8-7.0 range, honestly, exposing them to a range of PH is a good practice in hydro. Are you seeing any problems with your plants? I've heard that FoxFarm coco can start with very high PPMS, so any problems you are seeing could be related to that, if you didn't flush it before you started. By "flush" I mean, run plenty of .8 ec nutrient solution through it to wash out any extra salts that some brands of coco start with.

Do not I repeat do not use Fox Farms Coco.. CANNA, Mother Earth, TUPUR all way better options in no specific order. COco loko and their other soils have always sucked. Look in the plant problems thread for fox farms every other issue is a plant in Fox Farms. Unexplainable EC/PPM and PH from every bag.

 

[OldMedUser]

Yes another thing I learned running AN back when was avoid mixing other brand products with it cause it wont always hold PH if you do. I quit using AN because it burns the tips of the leaves and makes my concentrates come out dark compared to CYCO PLAT. Have you ever had AN cause that weird necrotic burning on the leaves? I experienced it even with running much lower EC... Perhaps it's the type of Nitrogen(s) used?

OP Not trying to steal the thread sorry.

I use other products like CalMag, plain p/k and a couple other things and never checked the pH as my $70 pH pen couldn't seem to read the AN nutes properly. Anything else it read fine so I just left it alone and never bothered checking pH again. The only time I had problems with burn was in winter when the RH could be 20% for months so at higher ppm they were sucking up more nutes with the extra water they needed which ended up manifesting as toxic salts buildup hitting about half way thru flower and frying all the leaves right up to the tiny bud leaves by harvest time. When you smoke that bud it goes snap, crackle and pop.

Started running 500 - 600ppm max instead of 1000 - 1400 and the problem went away.

The pH Perfect ones are almost half the concentration of the older ones that didn't have that. I picked up 3L of the 3-part Jungle juice which is the same NPK as the original but no pH Perfect so will have to dust off the pH pen and see what pH I get when I mix up a 1/2 strength batch in RO. May try mixing 50:50 with my tap water which comes out of a big dugout on my property. 400ppm and pH 8+ but loaded with beneficial bacteria etc that may be great for my semi-organic grows and set the pH where it's needed if it's too low with RO alone. I add DynoMyco to my blends and feed some carbs to keep them happy.

 

[VincenzioVonHook]

I’ve never rinsed any prebuffered coco from the bags.

personally I use CANNA although the plant above has been grown in brick that I hydrated with plain tap water and began feeding.

i feed every time they need to be watered and during the early seedling stage I wait for the coco to lose some weight before feeding again and saturate the entire pot until runoff.

once my plants are becoming light in weight every day I transplant to a larger pot and begin with daily feeding that is automated.

i increase feeding each week until I’m around 2-5x a day depending on pot size. (Plant above is in 2Gallons)

l have just switched my feeding last night from every 2 hours to every 3 hours as the plant drinks less towards later flower.

10-14 days to start daily feeding is about right Imo.

i grow in straight coco if you mix in perlite (too much +30% or more) it can drain too fast needing more frequent feeding.

I've had the opposite experience. Pinegro "premium hydroponic grade, pre washed Coco". Came out at nearly 7000ppm from the bag. A brunnings "pre washed" coir block. Came out at 5900ppm and ph 5.1.

I'm paranoid now..