CANNA COGr Buffer Agent is a complete professional buffer concentrate for buffering and soaking none buffered coco. Unbeknown to many people CANNA COGr buffer agent is actually a Cal Mag. The product contains a mixture of calcium and magnesium in it at a ratio of 2:1 to compensate the absorption of the none-buffered coco fibre.

Another use for CANNA COGr Buffer Agent is to make extreme soft water more ‘normal’. We refer to ‘normal water’ as having an EC of 0.45, so if the EC of your tap water is 0.1, for example, then you can use our COGr Buffer Agent to retain a normal EC value of 0.45.

User Instructions

• Shake bottle well before use
• Fill nutrient reservoir with water
• COGr Buffer Agent to the nutrient reservoir with the dilution ratio 1:500 (200 ml per 100 litre of water)
• The EC of COGr Buffer Agent dissolved in (tap) water varies between 1.5 - 1.8 mS/cm2 (= the solution EC + the water EC)
• Recommended pH: 5.5 - 6.2
• Add ± 12,5 litres of buffer-solution to each slab
• Let the swollen COGr soak for at least 24 hours before draining it!

Storage, health & safety and other directions

• Over-fertilisation has a negative effect on the substrate, the plant and nature in general
• Store closed in a dark and frost-proof place (UV light breaks down iron chelates in the nutrient)
• Keep out of reach of children