We know what lines were growing now, but what is my choice for media and nutrition?
Promix BX w/ BioFungicide. I cut it with 15% Calcined DE for its ability to act as a water sponge absorbing and releasing water as needed. A mineral alternative to water crystals you could say, but better. It can also be precharged with P fertilizer to act as a slow release amendment. I often times mix up a batch of WSF and soak the DE in it, then incorporate it into the media. I didn't this time though. Anyone looking to source it can find it known as Axis Regular Soil Amendment, or cheaper as Optisorb at O'reillys Autoparts(it must
say from EP minerals
on it, else it is likely to break down). This material was screened first to remove the fines before soaking and further incorporation into the media.
Mixed into the media is Bioworks Rootshield+ Biofungicide in granular form. Its a preventative measure against root rot and will produce some of the whitest most beautiful roots you'll ever grow.
I am using CRFs incorporated into the media at a rate of 5gr/gallon of media. Osmocote Plus 15-9-12, 5-6 month release formula. I also supplement with WSF feed(GH Flora 3 part) every other watering around .9 EC, 450 ppm. Ill update later with a more accurate nutrient profile.
GH 3 Part Flora 5/5/7 Nutrient Profile:
Total N: 91 ppm
Nitrate N: 85 ppm
Ammonium N: 6 ppm
P: 49 ppm
K: 145 ppm
Ca: 69 ppm
Ive tried WSF only feed before for a long time, but plants never performed as well as plants that received CRF, and it was harder to keep WSF fed plants healthy. Its also a PITA to constantly mix up feed solutions.
I dont know how well this level of Osmocote will work long term. Ive tried it at up to 18 grams/gallon and that was way over-kill at those rates, so I dropped to 5gr/gallon. Anyone else considering CRF should definitely experiment with different rates for best results.
Has anyone noticed a lack of Durban Poison pictures so far?