Nutrafin Cycle Biological Aquarium Supplement 120ml

  • RRP: $17.95
  • Our Price: $10.95
  • Save: 39.00%

For over 30 years, Nutrafin has been dedicated to improving the quality and effectiveness of fish nutrition and water treatments. Our focus has always been to foster an environment that makes fish thrive. Nutrafin's long-standing commitment to scientific research and development in fish nutrition and water chemistry management is reflected in its wide range of trusted fish food and water treatments.

Free shipping on orders over $99.

Product Description

Introducing the Nutrafin Cycle Biological Aquarium Supplement in a 120ml size. This product establishes a safe biological aquarium for your fish. It features a high-concentration formula in which the cycle goes to work fast, releasing massive amounts of beneficial bacteria that eliminate toxic amonia and nitrites in the water and creating a biologically well-balanced aquarium for healthy fish to thrive. It is also ideal for quickly establishing safe and essential conditions in new aquarium setups, so that you can introduce fish to new aquariums immediately.

Key Features & Benefits:

  • Ideal for establishing safe conditions in new aquariums.
  • All-natural product that will not harm plants, animals or humans. It does not require refrigeration.
  • Regular application helps to competitively exclude the establishment of undesirable bacteria in aquariums.
  • Has bio-floc technology that preserves product stability, efficacy and shelf life.
  • Contains pure, safe bacterial colonies free of undesirable contaminants.
  • For fresh and saltwater use.


  • New Aquariums:
    • Day 1: 25 mL per 38 L
    • Day 2: 10 mL per 38 L
    • Day 3: 10 mL per 38 L
  • All regular maintenance activities (water changes, filter maintenance, etc.) - 5 mL per 38 L
  • After adding new fish and/or medicating - 10 mL per 38 L
  • Weekly dosage to maintain a strong beneficial biological colony - 5 mL per 38 L


  • Size: 120ml

Additional Information

Brand Nutrafin
Animal Fish
Barcode 0015561179003

Quick FAQs

Welcome to Petology. Below is a brief overview of our shipping, payment and warranty terms and conditions. For more information please see the links in the footer of our webpage.

Shipping: We offer free shipping to most metro zoned orders in Australia over the value of $99. Please see our Shipping page for more info on order dispatch times and postage costs.

Payment: Petology accepts PayPal, Visa, Mastercard and American Express payments. All our credit card payments are processed by eWay, a secure payment gateway. There are no surcharges for Amex payments.

Warranty: You may return new and unused products within thirty (30) days of delivery for a refund minus shipping costs. All of our pet supplies are purchased from verified local suppliers and include manufacturers warranty.

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    Nutrifin Cycle

    Good Product at a good price delivered in a timely fashion.

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