Coral Exotic Substrate at Fungi Myco

Coral Exotic

for mushroom fruiting

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Ingredients

CVG (coco coir, vermiculite, gypsum), manure, straw & worm castings

Key Features

  • Nutrient-rich and microbe-diverse for those demanding species.
  • Pasteurised to kill competing microorganisms and bacteria.
  • Hydrated to field capacity to minimise contamination-risk whilst maximising flushes.

What's in the Box

  • A bag of Coral Exotic (depending on your selected size)
  • 2 x Sterile Wipes
  • Online step-by-step instructions

Overview

Our most nutrient-rich and microbe-diverse substrate. It’s been designed for those more exotic gourmet mushrooms, providing a broader microbial ecosystem and trace minerals that support aggressive colonisation and vigorous flushes for demanding species. Recommended for cultivators seeking high-performance results from those exotic gourmet varieties.

  • Improved microbial diversity and trace minerals
  • Supports aggressive colonisation and high-yield flushes
  • Ideal for advanced cultivators working with more demanding exotic gourmet species

Our Expert's Opinion

Tony, our resident mycologist, has this to say.

Pros

  • Diverse Nutrient Spectrum - Fast-releasing from manure and slow-releasing from worm castings.
  • Supports Higher Yields - Larger flushes and dense fruit body development when dialled in.
  • Healthy Grow - Castings provide micronutrients and beneficial microbial content.

Cons

  • Increased Contamination Risk - Pasteurised manure is not sterile, and if your spawn isn’t clean or your inoculation method is sloppy, it will contaminate faster than more forgiving substrates.

Tips

  • Overcome Potential Water Retention Issues - This nutrient-rich substrate may benefit from a non-nutritive casing layer to maintain consistent surface moisture and encourage even pinning — it's worth researching for your particular gourmet setup and climate.
  • Succeeding with Fussy Strains - If you zapped out trying to figure out what's best then add a non nutirient casing layer to this mix.

FAQs

Does this substrate need to be sterilised or pasteurised before use?

This substrate has already been pasteurised — so no — you're good to go!

Do I need to add any water?

No — this substrate is already hydrated to field capacity and is ready to use.

Does it come with instructions?

Yes — you'll receive full step-by-step instructions so that you know exactly what do and when.

Can’t see an answer to a question you have just throw us a quick message

Introducing Bulk Substrate

Once your grain is fully colonised (and only then!), it’s time to put your bulk substrate to work. Simply break up the colonised grain and mix it thoroughly through the substrate, making sure it is distributed evenly throughout.

We suggest a ratio of 2:1 (for beginners) or 3:1 — bulk substrate to spawn. Once mixed, leave it to colonise the substrate and let nature do what it does best.

And yes, you could technically use the substrate for something else. Fill a planter. Improve your compost. Make a very elaborate mud pie.

But frankly, it was made for mushrooms. So probs best to give it to the mycelium.

See more on introducing bulk substrate to colonised grain

Best for Storage

  • For best results use immediately
  • If not using right away — store somewhere cool and dark, ideally 13–21°C, standing upright without heavy items stacked on top.
  • Keep in original sealed bag to protect the internal microflora balance.
  • Do NOT freeze
  • Best used within 7 to 14 days — before dormant spores or bacteria wake up.

Payment

We currently only accept bank transfer — full details are provided upon checkout.

Why don't we accept card payments? Unfortunately despite progress, the industry is still heavily stigmatised (from banks) which means that even payment gateways such as PayPal don't provide a service for any spore provider based in the UK (also the reason that you cannot buy these spores on the high street).

We encourage you to read our customer reviews to see the experiences others have had with us.

Still got questions? — reach out to us.

Delivery

In the UK, please allow 2-3 days delivery time from dispatch. Outside the UK times can vary greatly - so it is better to order well in advance.

We currently deliver to the following countries: Austria, Belgium, Czechia, France, Greece, Italy, Netherlands, Spain, U.S.

See our full delivery policy

Returns

Unopened items or otherwise damaged or defective products can be returned within 30 days.

Please contact us straight-away and we'll be sure to put things right.

See our returns policy