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Early in the week I cycled the tank and stabilized PH to 6.0 with Nutri+ PH down product (35% Phosphoric Acid) and it seems to be working quite to settle PH of the solution. Only a few drops were needed to bring PH to 6.
My starting water is 30 PPM city/municipal water at a working PH of 8.5-9.
CNS 17 seems to buffer down to 6.2-6.5
I also added the following per 10L:
Canna Cannazym - 20ml
Canna Bio Rhizotonic - 20ml
The plants are looking generally well but some of the older leaves are showing signs of decay. I will probably prune off these areas next week.
I will take some pictures of the root zone next update.
Hi Guys - there seems to be a host of problems that occur when you use vinegar and other simple household products. Some people have been reporting bio films and sludge as a result of my reading the forums on the web I decided to go with a standardized Phosphoric acid product from Nutri + and it seems to work very well for my needs!