Help needed

[slayertat]

HI,

 

I am trying to help a friend fix a problem that has just occured with his grow. I thought I would employ the extensive wealth of knowledge on theses forums to aid me.

My friend has been doing the same formula for years and never had a problem. now this.

 

Indoor/Outdoor: Indoor

Growing Medium: Perlite

Growing Style: potted, saucer fed

Watering/Feeding Frequency:

Nutrient Strength (PPM/EC): 1.6-1.8

PH Levels: heres the thing, i tested nute that had been sitting in saucer for 2 days and ph was 6.9...I was ahaaa, heres our drama. but then I tested new nute going into saucer and it was 6.3 so now im dubious

Temperature/Humidity Levels: 26-28c hum 40-60

Air Flow/Fans etc.: all adequate, plenty of fresh air

Lighting Type (CFL/HPS/MH etc.): hps

Total Wattage: 3600

Growth Stage: Veg

Plants Age: Unsure

Cannabis Strain: unsure.

 

So far I have suggested a good flush with ph balanced water and going to half strength nute. testing the nute for ph at frequent intervals in the saucer.

Friend has also ran a run of Fongarid through as well.

 

Sorry about the poor quality of the pic.

 

You will see little spots towards the ends

 

[The Hash Nibbler]

Heya Slayertat, PH rises naturally in perlite, and the shit in the saucer will be a concentrate, as water evaporates ph rises as does PPM.

Feed em at a lower PH, or flush em with a lower PH water (maybe 5.5 PH) , but bring it down to 5.8 and let it rise by itself.

3600w is a lot of light dude...... if ya exceeding the optimum light for your area, I hope ya got CO2....

Peace. Nibbler

[slayertat]

Thanks Nibbler, yes its a large room .

 

He is flushing at 5 ph.

 

Feeding at lower ph sounds like a good idea.

 

thanks again