API Stress Zyme improves the performance of biological filters and keep aquariums clean. It contains millions of live bacteria which break down sludge in filters, the gravel bed and aquarium decor. Use weekly and after water changes to reduce aquarium maintenance.
Aquariums are “closed aquatic systems”, meaning that there is no natural river or stream to carry away debris and other waste materials. Dead algae, solid fish waste, and uneaten fish food collect in the aquarium gravel. This results in an organic sludge build-up, slowly fermenting in the gravel bed. The decomposing organic material becomes a breeding ground for fish pathogens and ruins the appearance of the aquarium. Sludge build-up also suffocates beneficial nitrifying bacteria that comprise the biological filter. Adding specific strains of natural bacteria to the aquarium helps remediate the sludge build-up resulting in a cleaner, healthier aquarium. STRESS ZYME contains a unique blend of bacterial strains selected to reduce sludge build-up in an aquarium.
Making STRESS ZYME bacterial cleaner part of your tank’s regular upkeep routine assures an active biological filter, a cleaner aquarium, healthier fish, and good water quality.
Usage tips:
- For use when setting up new ponds, carrying out water changes.
- Always read the instructions carefully before use.
Dosage:
- Easy to use, the dosing cap included on the bottle
- Use 5ml per 38 litres, weekly.
- For new aquariums, to boost the filter, use 10ml per 38 litres for 2 weeks.
- Treats up to 3,581L
📦 Delivery & Collection
We offer several convenient options to receive your pet products, whether you'd like to collect from one of our stores or if you'd like us to post your items to you!
We offer Free Delivery on all orders over £45 (Excluding Scotland & Northern Ireland). All orders under £45 will have a £5.99 delivery charge.
For orders to Scotland and Northern Ireland a delivery charge of £8.99 will be applied.
🚚 Local Delivery
Available for BN1, BN2, BN3 postcodes and surrounding areas.
Orders placed before 11am Monday–Friday are usually delivered the same day or next day. Orders after 11am are not guaranteed to be delivered the same day(excluding weekends and bank holidays). For a more exact time scale please call your local store and a member of our team will be able to assist you. Brighton Orders - 01273 606868 & Hove Orders - 01273 738016.
📦 UK Shipping
We use Royal Mail, EVRI, Yodel and DPD Next Day services.
Orders placed Monday–Friday are processed on the same or next working day. Standard shipping typically takes 2–3 days, and priority shipping usually arrives within 1–2 days*.
(*Subject to stock availability)
🛍 Click & Collect
Choose collection from Brighton (Baker Street, Brighton), Hollingbury (Crowhurst Road, Brighton) or Hove (Portland Road) at checkout.
Your order is usually ready within 24 hours – we’ll email you as soon as it's ready for collection.
⏰ Need your order urgently?
Please give our friendly team a call on 01273 738016 and we’ll do our very best to assist you.
- Vendor API Fish Care