Genesis - Coco A&B Mush

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  • Concentrated mush – add hot water and shake
  • Easy-to use base nutrients
  • Specially formulated for stunning results in coco coir
  • Used right the way through the growing cycle, from veg to flower
  • Optimised for use with Green Air's range of additives, like P/K Plus and Pro-Tect
  • Two-part feed (used in equal measures)

Genesis - Coco A&B Mush

This is Green Air’s specially formulated two-part Genesis Coco feed, which has been optimised for outstanding results when growing in coco coir media. It comes with a pedigree that has made the Genesis range a smash hit and highly sought after by old-school growers who demand the very best in terms of quality and yield.

Recommended Additional Purchases

Growers Water Conditioning Toolkit

Bluelab Expert Water Conditioning Toolkit

How Coco A&B Mush Works

Green Air Products’ Genesis Coco A&B is a base nutrient that’s been formulated specifically for use with plants grown in coco coir. It’s has all of the basic nutrients required for healthy, vibrant growth in both the vegetative and flowering stages of the plants development.

To see the full Genesis Formula range, click here


1 bottle of Coco A Mush, 1 bottle of Coco B Mush (choose your size above)

How to Use Coco A&B Mush

Before using this Coco A and B formula, you must first dilute the concentrated mix. Fill the bottle ¾ of the way up with hot water, screw the lid on and shake vigorously. Once the mush is completely dissolved, you can then fill the bottle with hot water up to the fill line at the top of the bottle. Always shake the bottle before use to ensure a consistent, even mixture.

Fill your reservoir with water and add equal amounts of part A and part B to the tank to achieve the required strength and mix well. Use a syringe or beaker to ensure that your measurements are accurate and use a conductivity meter (like the Bluelab Truncheon) to check nutrient strength. Adjust as necessary.

Here is the manufacturer’s guide to the required dilution rates for each stage:


Week 1: 1ml per litre

Week 2: 1.3ml per litre

Week 3: 1.6ml per litre


Week 1: 2ml per litre

Week 2: 2.3ml per litre

Week 3: 2.3ml per litre

Week 4: 2.6ml per litre

Week 5: 2.6ml per litre

Week 6: 3.0ml per litre

Week 7: 2.6ml per litre

Week 8: 2.3ml per litre

Final Week: flush

Use a pH meter to ensure that the solution sits within optimal ranges, adjusting as necessary using pH down solution. In Coco, the correct pH level is generally between 5.8 and 6.3.

As with all nutrients, boosters and additives, DO NOT mix them together in their concentrated form (i.e. straight out of the bottle). Always add each nutrient, booster or additive to your reservoir or feed water in turn, giving the solution a good stir to mix it in before adding the next one.

Green Air Genesis Coco-A: NPK 3-10-19, magnesium 3%, sulphur 4%, boron 0.03%, cobalt 0.002%, iron 0.2%, manganese 0.05%, molybdenum 0.003%, zinc 0.05%

Green Air Genesis Coco-B: NPK 14-0-12, calcium 16%


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