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- Quick & reliable
- Water test to check the six most important water values in one step
- Measures the pH, general and carbonate hardness (GH + KH), nitrite (NO2-), nitrate (NO3-), and chlorine (Cl2)
£9.99
In stock
View the full Tetrapond range. 
Product Code: 36791784
The Tetra Pond test strips enable you to quickly and reliably determine the six most important water values in ponds in one simple step: dip the test strips into the water, swirl them in the water for one or two seconds, shake off any excess water and read off the most important information about the water values just 60 seconds later. The colour chart can be used to determine whether these are within the safe range. The pH, general and carbonate hardness (GH + KH), nitrite (NO2-), nitrate (NO3-) and chlorine (Cl2) in the garden pond water are measured. Pond inhabitants such as fish react very sensitively to excessive changes in the pH value, which impacts their well-being. The general hardness affects the vital functions of fish, while the carbonate hardness has a direct influence on the stability of the pH value (pH buffer). The test strips also measure the nitrite and nitrate values of the pond water. Nitrite is extremely harmful, even in very low concentrations, and should not be detectable in the water. Nitrate is a nutrient that helps plants to grow. However, excessively high levels of NO3- can be harmful to fish and promote excessive algae growth. Chlorine may also be present in the water, and is harmful to fish and plants. Just like nitrite, chlorine should not be detectable in the pond water. The Tetra Aquatics app can be used to determine the water values quickly and reliably using a smartphone.
Standard Delivery (for online orders only)
FREE for online orders £39.99 and over
£4.99 for online orders £39.98 and under
£7.50 - £12.20 additional charge for orders being delivered to North Scotland, Scottish Highlands & Island delivery zones (also charged on orders £39.99 and over).
Orders containing one or more items labelled as "Local Delivery" do not qualify for our Standard Delivery and are charged at a different rate (see below, these orders do not qualify for free delivery if over £39.99).
Standard delivery is normally delivered in up to 3 working days, Monday - Friday (Excluding Bank Holidays & Public Holidays) for online orders received before 1pm. Orders received after 1pm may still be processed that day and delivered within 3 working days but in most instances will not be processed until the next working day and then delivered within 3 working days from then. This time frame is a guide and unfortunately not always achiavable.
Northern Scotland, Highlands & Isles Delivery Zones
Isle of Wight & Scilly Islands
The following postcodes will incur a £7.50 delivery surcharge on top of standard delivery charge:
PO 30-41 | TR21 - TR25
North Scotland & Highlands
The following postcodes will incur a £10.00 delivery surcharge on top of standard delivery charge:
AB31 - AB38, AB41 - AB99
IV1 - IV40, IV52, IV53, IV54 & IV63
KW1 - KW14
PA21 - PA38
PH4 - PH41, PH42, PH43 & PH44
Isle of Man, Scottish Isles & Channel Islands
The following postcodes will incur a £12.50 delivery surcharge on top of standard delivery charge:
IM | GY | JE | HS | ZE
IV41 - IV49
KA27 & KA28
KW15, KW16 & KW17
PA20, PA41 - PA49, PA60 - PA78
PH42, PH43 & PH44
Please note that delivery to these locations may take additional time to be delivered and may be sent using an alternate courier.
Large & heavy Items
Some larger, heavy or bulky items may not be eligible for our standard delivery and may take take longer to process - This includes examples such as but not limited to pools, furniture, and large garden products.
In store purchases
Products purchased in store are not eligible for our standard online delivery services and are not free if £39.99 or over. Availability of, and prices for delivery of in store purchases will vary depending on the items purchased and store purchased from. Delivery for items purchased in store is also limited to the local area of the store the item is purchased from and these items are not eligible for delivery to Northern Scotland, Highlands & Isles delivery zones.
A member of staff in store will be able to advise on the availability, price and timescale of delivery for items purchased in store.
14 days to change your mind
Within the first 14 days of your item being delivered you may decide to return it to us for any reason. If you do we will refund the cost of the item and your initial delivery charge.
Some items are excluded from this policy, and any item returned must be in a resalable condition.
Faulty items
If you discover your product to be faulty within the first 30 days of purchase, please contact us and we will be able to arrange the return of your parcel, for a full refund of your purchase cost, including initial postage price. If you send the product back to us, we will also cover the cost of your return postage to the value of £10.