Fluval Cycle Biological Enhancer
Fluval Cycle Biological Enhancer - 30ml is backordered and will ship as soon as it is back in stock.
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Fluval Cycle Biological Enhancer is an all-natural water care solution designed to create a safe and stable biological environment for your aquarium, helping prevent fish loss and supporting long-term aquatic health.
Powered by a highly effective blend of beneficial bacteria, this formula immediately inoculates your aquarium water, making it ideal for new tank setups, adding new fish, or re-establishing bacteria after maintenance. It’s equally valuable during water changes and filter media replacements, when essential bacteria levels can become depleted.
Regular use helps prevent the growth of harmful, undesirable bacteria by promoting a strong and healthy biological foundation. Fluval Cycle rapidly eliminates ammonia and nitrite, keeping water parameters stable and safe for your fish.
Featuring advanced Bio-Floc technology, this product remains stable, active, and free from contaminants, ensuring maximum performance with every dose.
Suitable for freshwater and saltwater aquariums.
Treats
- 4 fl oz / 120 ml bottle treats aquarium up to 240 US Gal / 908 L
- 8.4 fl oz / 250 ml bottle treats aquariums up to 500 US Gal / 1892 L
- 16.9 fl oz / 500 ml bottle treats aquarium up to 1000 US Gal / 3785 L
- 0.5 US Gal / 2 L bottle treats aquariums up to 4000 US Gal / 15140 L
Delivery
Delivery
We offer free DPD next working day delivery to all UK mainland online orders over £49. For orders under £49, a flat fee of £5.99 applies.
For orders to the Channel Islands, Isle of Man, Scottish Highlands, and Scilly Isles, DPD provides a two-working day delivery service, and additional shipping charges may apply at checkout.
Please note: We currently do not ship to Northern Ireland.
Selected items that are not available to order online may be available for local delivery at an extra charge.
Orders placed before 1pm Monday to Friday are dispatched the same day, subject to stock availability.
Click & Collect
Click & Collect
We offer free store collection at our Wirral store, with orders ready for collection in as little as 15 minutes, depending on stock availability. If the item is not available at the Wirral store, you can choose to place the order on hold till stock arrives.
Please note that your order will be held for 7 days. Any orders not collected within this period will be automatically cancelled and refunded in full.
Returns & Refunds
Returns & Refunds
We offer a FREE 60-day returns policy. To start your return, simply give us a call on 0151 336 3616 or initiate your return through our returns portal
For our full returns policy click here
Need advice?
Call and speak to a human expert on 0151 336 3616
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
