420 Boy
Member
Hi guys,
I am growing in Canna coco 10" pots with Canna Cogr line of products.
Due to a malfunctioning Ph pen the plants have been given 2 or 3 consecutive feedings (at around week 4 of flowering) at VERY low ph (like 2 or 3).
By the time the ph pen problem was noticed (week 5 flowering) and fixed (exchanged by warranty), the plants have gotten a beating, stalled, became yellow AF and show major nutrient burn. They look horrible and barely drink any water. Add a little overfeeding and some high temps and I am seriously surprised at how they are even alive.
They have been given water over the last few weeks to wash off the high PPMs accumulated in the Coco because runoff water showed over 2000ppm.
PPMs of runoff have been balanced now but the PH of the runoff water is still low, holding a steady +/-4.2 PH
I was planning to reuse the coco as usual for the next batch. But am now afraid that when next batch is transplanted, It would be very bad for the young roots to have such low PH in the coco.
Here's the question: Is there a way to bring the PH of the coco up to an acceptable level and reuse the coco for the next batch? Taking in consideration that plants are to be cut any day now. Or should i just replace it with new.
I did some tests by dissolving some coco from the pot and brand new coco from the bag in a small amount of tap water and measured the levels of PH realised that the coco from the pot lowered the PH by as much as 3-4 times than the new Coco from the bag.
I am growing in Canna coco 10" pots with Canna Cogr line of products.
Due to a malfunctioning Ph pen the plants have been given 2 or 3 consecutive feedings (at around week 4 of flowering) at VERY low ph (like 2 or 3).
By the time the ph pen problem was noticed (week 5 flowering) and fixed (exchanged by warranty), the plants have gotten a beating, stalled, became yellow AF and show major nutrient burn. They look horrible and barely drink any water. Add a little overfeeding and some high temps and I am seriously surprised at how they are even alive.
They have been given water over the last few weeks to wash off the high PPMs accumulated in the Coco because runoff water showed over 2000ppm.
PPMs of runoff have been balanced now but the PH of the runoff water is still low, holding a steady +/-4.2 PH
I was planning to reuse the coco as usual for the next batch. But am now afraid that when next batch is transplanted, It would be very bad for the young roots to have such low PH in the coco.
Here's the question: Is there a way to bring the PH of the coco up to an acceptable level and reuse the coco for the next batch? Taking in consideration that plants are to be cut any day now. Or should i just replace it with new.
I did some tests by dissolving some coco from the pot and brand new coco from the bag in a small amount of tap water and measured the levels of PH realised that the coco from the pot lowered the PH by as much as 3-4 times than the new Coco from the bag.
