Cloverleaf’s Aqua-Vet+ RoundWorm (Trichostrongylus ova) treatments in 3 sizes of pouch, 50g, 100g and 200g, all for treating koi ponds and aquariums.

RoundWorm (Trichostrongylus ova) AquaVet Treatment

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Absolute Aqua-Vet Round Worm+ | Effective Roundworm Treatment for Koi & Pond Fish

Targeted Parasite Control for Trichostrongylus ova (Roundworms)

Absolute Aqua-Vet Round Worm+ is a highly effective, professional-grade treatment designed specifically to target internal Roundworm (Trichostrongylus ova) infestations in koi and other pond fish. Often mistaken for Camallanus worms due to their similar symptoms—such as unexplained weight loss, lethargy, and sudden fish deaths—Roundworms are harder to detect, as they do not visibly protrude from the fish's body. This makes early treatment essential.

Formulated to safely break down the digestive system of the parasite while simultaneously paralysing its feeding mechanism, Round Worm+ ensures thorough eradication without harming aquatic plants or disrupting beneficial filter bacteria.

Whether you're maintaining a small ornamental pond or a large koi setup, this treatment offers reliable, fast-acting protection with minimal stress to your aquatic environment.


How to Use:

  • Treatment Schedule: Apply on Days 1, 8 & 15.

  • Dosage: Use 10g per 100 gallons (454L) of pond water.

  • Application: Shake the bag well to decompact the powder. Mix the correct dosage into 2L of pond water in a clean watering can and evenly distribute across the pond surface.

  • UV Steriliser: Turn off UV sterilisers during treatment. Reactivate on Day 30.


Available Sizes:

  • 25g | 50g | 100g | 250g | 500g | 1kg
    Perfect for hobbyist and professional pond keepers alike.


💡 Need to treat other internal parasites like Camallanus?
Check out our Absolute Aqua-Vet Camallanus+ for targeted care.


Why Choose Absolute Aqua-Vet Round Worm+?

  • Targets roundworms quickly and effectively

  • Will not harm pond plants or filtration bacteria

  • Trusted by koi keepers and aquatic professionals

  • Easy-to-follow 3-step dosing protocol

  • Available in multiple sizes to suit all pond volumes

Ensure the long-term health of your fish by eliminating hidden internal parasites before they cause serious issues.