Better fish FCR and health
in your RAS.

CarbonClear improves fish FCR and health in recirculating systems by removing the dissolved organic carbon by-products of digestion — the hidden cause of poor growth and poor fish health.

Are you affected? How it works
What is CarbonClear?

A better way to keep
your water — and fish — clean.

Dissolved organic carbon builds up in every recirculating system as a by-product of digestion. CarbonClear removes it at the source, so your fish convert feed more efficiently and stay healthier — without changing how you run your farm.

“CarbonClear improves fish FCR and health in RAS by removing the dissolved organic carbon by-products of digestion.”

The short answer to “what is CarbonClear?”

Sound familiar?

Are you struggling with
any of the following?

These are the symptoms RAS farmers see every day — and most don’t know what’s actually causing them.

Poor fish growth
Poor overall fish health
Eroded fish fins
Slime & mucus on the gills
Poor water quality
Off-flavour in the flesh

These symptoms are caused by dissolved organic carbons in the water — specifically phenols — which are a by-product of digestion. As they accumulate in a recirculating system, they quietly degrade both water quality and fish performance.

Read the research behind this →
How CarbonClear works

Removing dissolved organic
carbons at the source.

CarbonClear uses activated carbon — but in a fundamentally more effective way than the industry standard.

1
Activated carbon removes the dissolved organic carbons
Activated carbon is highly effective at binding and removing the dissolved organic carbons and phenols that build up in a recirculating system.
2
But we add it to the feed — not the water
Instead of dosing activated carbon into the water as is typically done, CarbonClear puts it straight into the feed. The removal starts in the fish’s gut, where it is far more effective. Once excreted, the activated carbon keeps adsorbing dissolved organic carbons from the water itself — right up until it’s physically removed by mechanical filtration (typically the drum filter).
3
The result is a far more effective process
This proprietary approach removes dissolved organic carbons more completely than water-side dosing — improving FCR and fish health. We proved it in controlled growth trials on a fish farm here in South Africa.
See the growth trial data →
Your next steps

Think this could be
affecting your system?

Here’s how to find out — and what to do about it.

1

Are dissolved organic carbons & phenols affecting your system?

You can test for them directly in your water. We’ll walk you through exactly how to test for dissolved organic carbon (DOC) and what your results mean — so you can confirm the issue for yourself. If your DOC is elevated, CarbonClear is relevant to you.

How to test your water →

2

Where can you access CarbonClear?

You’ve got two options.

Ask your feed supplier

Reach out to your feed supplier and request that CarbonClear be included in the feed they supply you. The more farmers who ask, the faster it becomes standard.

Talk to us directly

Want advice, or just to talk it through? Reach out and we’ll get back to you by email. You can also start a conversation on WhatsApp.

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