Tetra 6-in-1 Water Test Strips are an easy way to check the quality of water in your aquarium. You can find the six most important water parameters in a matter of seconds. Just hold the test strip in the aquarium for 60 seconds to check for pH, Nitrite, Nitrate GH, chlorine, and KH. Please refer to the colour chart to identify if the parameters within the same range. Testing should be carried out every 2-3 days in new aquariums and once a week in established aquariums to maintain a healthy environment for your pet fish.
With the Tetra Aquatics app you can determine water values quickly, reliably and easily using your smartphone.
The name Tetra has become synonymous with ornamental fish keeping and has radically changed the hobby. They supply fish keepers and pond owners with a complete range of products such as food, water conditioners and plant conditioners, technical equipment and medicinal products. The brand also publishes books for aquarium fish keeping, reptile and amphibian keeping, and water gardening. Their goal is to make fish keeping as easy and enjoyable as possible for you!
Delivery & Returns
Deliveries are dispatched on the next working day after the order has been placed, and you should receive your order within 2 - 7 working days. In the unlikely event that an item you have ordered is out of stock, we will notify you immediately to inform you of any possible delays. Orders placed on a Friday or over the weekend, ship on Monday.
Our standard delivery charge is €4.90 to anywhere in Ireland or Northern Ireland. Orders over €30 are delivered free of charge.
The delivery charge to mainland UK is €10 for orders under 25kg in weight. For deliveries over 25kg in weight, a member of our team will contact you. Please note we cannot deliver outside mainland UK.
Please note: We are not currently shipping chemicals to the UK.
Why buy from Petworld?
We are dedicated to providing our customers with the best experience possible, and strive to make Petworld your first choice for the best products, superior customer service and an easy-to-use and secure on-line shopping experience.
- Free delivery on orders over €30. All other deliveries are just €4.90.
- Frequent buyer program - buy 9 bags of dog or cat food and get the 10th free. Get the details here.
- Product selection - we offer an extensive range of products for all your pet's needs.
- We're Irish - we're an Irish company, supporting Irish jobs.
- Personalised customer service - we have real people answering your questions.
- Regular communication - we stay in touch every step of the way, from order confirmation to dispatch.
- Knowledgeable and passionate staff - we're passionate about what we do and it shows. We train our staff to offer the highest quality advice and customer service.
- We respect your privacy. We won't share your personal information with 3rd parties.
- Easy returns - We want you to feel comfortable with your purchasing decision, so we offer a 100% satisfaction guarantee. If you're unhappy with your order, just send it back.
- Thousands of satisfied customers. We've been in business over 20 years. We're still around thanks to thousands of happy customers.