Every invasive roi we remove protects roughly 150 native reef fish a year — then begins a second life as organic fertilizer for island farms and gardens.
Guests and guides remove invasive roi from Kona’s reefs on every dive — each one saves ~150 native fish per year.
Roi can’t be eaten (ciguatera risk), so the whole fish is processed into a fish hydrolysate using a Korean Natural Farming method.
The finished product feeds tropical fruit trees, vegetables, herbs, and flowers across the Big Island.
It’s made using a Korean Natural Farming method: whole invasive roi are cold-fermented into a fish hydrolysate — never heat-processed like conventional fish emulsions, so the amino acids, enzymes, and marine micronutrients survive intact and stay immediately available to plants. Slow-release, organic, and made entirely from fish that were damaging the reef the week before.
Every bottle represents invasive fish removed from a living reef.
Want some for your garden? Contact us![[SWAP: product photo of the fertilizer]](/img/gear-station-at-the-kona-training-facility-169595.jpg)
Book a dive, learn to hunt roi, and leave the reef better than you found it.
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