UHG!!! PH getting to low mid flower!!

[black_thumb]

So I started mixing 25% peat in with my coir to increase cations because i had cal mag issues but now the ph is getting way to low half way into flowering.
I add 3 table spoons granulated lime into my mix every time i up-pot.


i feed 600 ppm @ 6.0 PH on drippers and flush with 7.0 ph RO water once a week.


i start to get the brown crunching leaves half way into flower from ph being to low locking out Phosphorus up take into the low 5's.


does anyone have any suggestions to counter the low ph when growing in peat?


thanks!!

 

[Tynehead Tom]

check out my ice hut grow. I have been away from growing indoors for over a decade but fired back up again this past march. I run my peat mix (sunshine mix 4 and I add 1 cup dolomite per 20 gallons of soil. I don't add anything else. promix is similar I guess but haven't used.
I run PH 6.8 with every feeding and flush thru veg and flower, dropping the PH in last 2 weeks to 6.3 (water only)
I am very pleased with the results and plants loved it right to the end.
(feeding 8ml micro/16bloom per gallon general hydro flora)


I feed 1/6th the volume of the pot, every 3 to 4 days and every 2 to 3 days later in flower. I feed for 2 cycles , then flush on the 3rd cycle to about a 20 to 30% run off.
so in my 3 gallon pots I'm feeding a 1/2 gallon per plant and on the flushes between feedings about 1 1/2 to 2 gallons per plant
I add 1/4 strength nutes to my flush mix inbetween feedings, this helps carry the excess build up out with the flush.
final flushes are done with straight water at 6.3 (I used to run 5.8 in late flower and some indica's I've grown like it and flush out better)
I'm no expert but it's what works for me
unfortunately I don't have much advice to offer on the coir in the mix