Fast Delivery

Next working day delivery with Royal Mail Tracked 24

60 Day Returns

Return unused items within 60 days for a full refund

Finance options available

Pay later in 30 days, or Pay in 3 with Klarna

100% Secure payments

Visa, Mastercard, PayPal, Apple Pay, Google Pay & more!

Fast Delivery

Next working day delivery with Royal Mail Tracked 24

60 Day Returns

Return unused items within 60 days for a full refund

Finance options available

Pay later in 30 days, or Pay in 3 with Klarna

100% Secure payments

Visa, Mastercard, PayPal, Apple Pay, Google Pay & more!

Filter Start

18 products

Showing 1 - 18 of 18 products

Browse our range of filter start bacteria for aquariums online. Filter starting bacteria can be used to speed up cycling of aquarium filters, to improve the efficiency of fish tank filtration, and boost the ability to process ammonia.

Select the fish tank filter start product of your choice from top brands like Dr Tims, King British and NT Labs.

Klarna is available at checkout on all products shown below. Click here for full Klarna terms and conditions.

Showing 1 - 18 of 18 products