Do not plant too many plants per square yard; plants will generally become larger on CANNA COCO and will need more space than on e.g. rockwool or potting soil.

Light breaks down iron chelates! Because of this, it is very important to ensure that no Ultra Violet light reaches the nutrient solution. Light also causes algae to grow in the nutrient solution, which can lead to blockages. Furthermore, algae can take up nutrient elements and cause nutrient deficiencies to occur.

Keep a record of the amounts of nutrients and additives you add to each tank of nutrients you mix. You then have a good starting point for the next time!

Take your time diluting and adjusting your nutrient tank! This is essential for the growth, flowering and development of the plants and will yield the best results.

When cultivating in plant trays with a sealable drainage system, it is easier to begin by making the drainage incisions, then turning over the COGr and filling the plant container with the buffering solution.

Check and adjust the nutrient reservoir as follows: Take a reading of the EC/ppm and pH of the nutrient solution and then determine whether there needs to be adjustments. Use the EC/ppm reading to determine if your concentration needs to be higher or lower, based on the values shown in our grow guide. Use the pH value to determine if an adjustment is needed and if so, try to correct the pH value at the first attempt!

Water with CANNA Coco fertilizers till 10-20% drainage is achieved. Water again with nutrient solution once the plant has consumed 50% of the nutrient solution originally applied. OR, follow along an irrigation schedule based on intended steering goals.

Calmag is recommended when using RO water or soft water on coco substrate. It may also be used depending on plant genetics.

Both nutrients are developed for inert media such as rockwool, clay pebbles and many others. CANNA specially developed CANNA AQUA to work in recirculating systems with these inert media. CANNA SUBSTRA should be used when using a run-to-waste system in inert media.

Never use raw rockwool! The pH is too high. Always soak rockwool before using it for the 1st time. Soak with water or a nutrient mixture with the pH adjusted to 5.5 and an EC of about 1.3 mS/cm. 

Make sure rockwool slabs are horizontal. If they are not truly horizontal the moisture will run to one end of the slab. This could mean that some plants become too dry and others too wet.

Don’t just measure the EC/ppm of the feed water and the drainage water regularly, remember to measure the EC/ppm of the substrate too.

CANNAZYM extends the life-span of Clay Pebbles, coco, and other growing mediums because it breaks down dead roots. It can be used to re-use coco medium.