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Marine - Parazoryne


Support for Recovery from Parasitic Infections in Marine Fish

Why? When fish are stressed, their immune system can be compromised, leading to further various infections which can overwhelm and kill them.

What? Parazoryne is a treatment containing a special blend of herbal extracts and oils, which supports the fish and its immune system during this recovery stage, allowing them to survive and thrive again.

When? Use when small white spots, like grains of salt, can be seen scattered on the body of the fish (Cryptocaryon), when the fish are showing signs of irritation (such as rubbing on objects in the aquarium), or if fish have a grey velvety film all over the body (Oodinium). A 10-day course of Parazoryne can be used at the same time as any other treatment, and will support the fish after medicinal treatment courses have ended to ensure that these work as efficiently as possible.

Caution: Do not use UV sterilisers, protein skimmers or absorbent materials such as activated carbon, until 1 day after the course has finished.

If your protein skimmer is the only source of aeration, then alternative aeration should be provided.

Poor water quality can be the primary cause of stress and disease in fish. Always monitor the water quality in your aquarium.

Follow the dosage instructions on the bottle label. 

View our medicinal treatment rules

Test your water using Marine Lab Test Kits.



Available in the following variations:


Where to Buy?

Simplified map of the United Kingdom.


Let us calculate your dosage for you!

To make the process of using our products even easier this handy dosage calculator tells you the amount you will need to put into your system. Please ensure you also read the instructions and warnings that are written on the bottle/pack label.

Note: This calculator does not take into account water displacement such as that caused by substrate, ornaments, water features and plants etc. Therefore, please adjust the calculated volume accordingly.

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You’ll require*
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This indicates the TOTAL amount required to undertake a full course of treatment across 10 days - divide the total amount by the number of days you are required to treat for (10 days in total - treating daily for 10 days with equal amounts).

* Always follow the instructions on the label. This calculator is intended to be used only as a guide to how much product you need to buy to treat your system. It does not take account of displacement caused by gravel, rocks and ornaments etc and does not include the volume of any external filtration system. NT Laboratories Ltd. will not accept any responsibility for inaccuracies or misuse of this guide.