Ppm - raise, lower or same

fredthesmoker

Active Member
So im the happy new buyer of a bluelab ec/ppm pen, since i want to know how much to add in my RO water.

Im using GHE floratrio, and i have lately had some trouble keeping my plants healthy.

Previous watering, i gave my plants clean RO water. - Stupid idea. My plants are dying, and i speculating if its because of all minerals are washed away from the biobizz light mix.

So i got this ppm stick, and watered my plants with 880 ppm, and also added 0,5ml/l calmag..

Tested the runoff, and it read 770 ppm

- And now i feel like i need some help. They are in week 5 at veggetative mode

Should i stay at the same dose? Or lower it to get the perfect ppm runoff ?

Or would it make a salt buildup, since i think its a bit high dose for veggin plants?


--- And how do you buffer ph in your ro water with nutes in it ? Some says, you dont have to correct it in soil, but the ph of the runoff told me 7,1 which is not perfect i assume?
 
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