API Stress Zyme 118ml

100% of 100
Product Code
STRESS ZYME contains live bacteria that break down sludge and reduce aquarium maintenance.
STRESS ZYME contains live bacteria that break down sludge and reduce aquarium maintenance.
Free UK Delivery On All Orders Over £29*

API Stress Zyme 118ml

100% of 100

STRESS ZYME adds beneficial bacteria that help break down and consume organic matter which helps keep you fish tank clean. Each teaspoonful contains over 300 million live bacteria that are uniquely suited to consume aquarium sludge, and keep the gravel clean. STRESS ZYME bacteria break down organic compounds that cause dangerous conditions such as ammonia and nitrite poisoning and low oxygen levels.

STRESS ZYME can be used in n fresh and saltwater aquariums, improving the development of the biological filter and help clean a dirty aquarium.

Free UK Standard Delivery*

On orders over £29*, only £4.95 for orders below £29. Excludes remote areas.

*fluctuations in demand or stock levels as well as weight restrictions, size restrictions and other contractual agreements mean that some products are not available for home delivery, and may be  ‘Instore Only’ or available to ‘Click and Collect’.

Guaranteed Weekend Deliveries

Only £10.50 for guaranteed Saturday or Sunday delivery. Available to mainland UK customers, excluding Northern Ireland. Place orders by 1pm Thursday for guaranteed weekend delivery.


Delivery to Remote Areas From £12

Standard delivery available to Scottish Highlands, Channel Islands, Isle of Man and Isle of Wight. For a full list of prices please visit our delivery page for further details.



If you are not completely satisfied with your order, you can return your goods within 30 days of receipt via post or your local Jollyes Petfood Superstore.


We are happy for you to return any products that you have purchased from us that are unused, in a resaleable condition and in their original packaging.  Unfortunately we are unable to accept returns of the following products: Personalised products, made-to-measure products, veterinary medicines including flea treatments & wormers, used food or unsealed CDs/DVDs or other recorded media.

Please visit our returns policy for further information.

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