CANNA specially developed CANNA AQUA for recirculating systems. CANNA SUBSTRA should be used when using a run-to-waste system. Please do not mix those two up!

Two pumps can be used to supply the nutrient solution to the plants to ensure that they will not be left dry if one of the two should malfunction.

If there are any air pumps in the nutrient reservoir, remember that these may raise the pH in the nutrient reservoir.

Watch the roots closely. Otherwise they will grow into the drainage holes. This will block the drains and the system will stop circulating.

Light breaks down iron chelates! Because of this, it is very important to ensure that no Ultra Violet light falls on 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 you dilute an acidic product, always add the acid to the water, never add water to the acid, if it splashes it will cause burns on your skin or in your eyes!

Measuring the nutrient reservoir works as follows: Take EC/ppm as the starting point, measure it and determine whether it should be higher or lower, based on the values shown in the instructions. Only then should you adjust the pH if necessary. Try to get the nutrient solution’s pH value correct at the first attempt.

CANNAZYM extends the life-span of Clay Pebbles and other growing mediums because it breaks down dead roots.

Clay pebbles can have a high salt content. By rinsing the pebbles with water, these harmful salts can be washed away. An additional advantage of this is that dust particles are also rinsed off and these may have caused blockages.

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 and an EC of about 1.3 (ppm values). CANNA Start has been specially developed for this purpose. As well as correcting pH & EC, a pre-soak also ensures an even distribution of the nutrient solution throughout the slab.

Make sure the rock wool 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.

You can easily distinguish between CANNA Substra A and B products because the A bottle contents is coloured and the B bottle contents is colourless.

If you are using CANNA RHIZOTONIC always add this to the feed water before you adjust the pH; CANNA RHIZOTONIC is a natural pH UP product.