The first and only complete certified organic nutrient for all substrates! With a pedigree dating back to 2004, Pro Organic has been in commercial use around the world for years, including by our partners Les Sourciers.

Pro Organic is a practical and incredibly effective way to feed your plants organically, for hobby growers and professionals alike. Pro Organic formulas are specifically designed to meet the needs of all plants throughout growth, flowering and fruiting.

How to use Pro Organic:
Pro Organic is very concentrated: a maximum of 2 ml/L in water is enough in soil or hydroponics.

Shake bottles well before each use, add each part to water separately, mix thoroughly, and always rinse measuring equipment.

Please note: Pro Organic (and all organic feed) must be broken down by microbes to be made accessible to plants. For a colony big enough to do this to develop, especially early on in a plant's life, a biofiltering system working 24/24h must be added to the tank in both drain to waste and recirculating systems.

Biofiltering systems be purchased in your local shop, or made by suspending a plastic basket (3 to 5L) filled with 60% clay pebbles and 40% coco over your tank and running water through it continuously. If using our GrowStream® system this can be done under the return pipe.

Do not immerse filter systems in the tank as high oxygen levels are vital for rapid growth of beneficial microorganisms.