Correct ph for a funny coco mix

[melacao]

So then i'm having trouble with some of my plants and im digging deep into the plethora of information on ph....

 

I use a funny mix which has always worked well for me and ive been keeping it at a ph of 6.0. I use ozi magic nutes along with this mix

 

The mix consists of about 50% coco, 10% compost/worm castings etc, 25% perlite, 10% 5mm gravel & 5% river sand. With dolomite lime at 2tbsp/gallon. I tried just coco and perlite and it retained waaay too much moisture.

 

So my question is what is the correct ph for a mix like this? Should i treat it like a hydro/coir medium or does the addition of a small amount of organic matter and some lime make it a "soil" mix?

 

Also i still cant wrap my head around why nutrients are absorbed at different ph levels in coco vs soil. I always thought calcium would be locked out if i dropped under 6 and if we sit at 5.8 for coco then what about mangenese? That gets locked out above 5.4 or so.... why are the ranges so drastically different? Surely the roots like the nutes within a certain ph no matter what substrate surrounds them....

 

Anyway. Fire away guys gimme all you got. Thanks in advance :-D

Edited June 17, 2018 by melacao

[pedro de pacas]

Its probably ya worm shit causing the problems

Or the dolimite

[melacao]

Its probably ya worm shit causing the problems

Or the dolimite

Why's that pedro? I put compost mix in to create more of a living medium and dolomite for cal/mag and to help buffer ph. Has never been a problem in the past!

[melacao]

What i really want to know is do i treat it as soil or as coco coir in regards to ph?