The Tetra Water Stabiliser will stabilise your garden pond's water values through a controlled increase of carbonate hardness (KH).

Water is prevented from becoming too soft and the pH value is stabilised, this creates a healthy environment for your fish and reduces deaths caused by pH variation. 

Once poured in, the stabiliser dissolves quickly, does not cloud the water and starts working immediately.


1.2kg for 10,000 I of pond water (KH increase by about 4 degrees dH


KH value 3-10 degree dH to stabilise the pH value. Check water values regularly.


Monthly dispense 1/2 tin per 5,000 l of pond water in the garden pond (KH increase by about 4-degree dH). If required re-dose, e.g. after heavy rainfalls or prior to application of anti-algae products and medications. Cannot overdose.

Delivery Information

Fast Free UK Delivery on orders over £60.00.*
Smaller orders under £60.00 are subject to a £4.95 delivery charge. Delivery will typically be made within 2 - 3 working days but may be extended during peak times.

We Can Offer Next Day Delivery for £7.95*
To meet our deadline for this service you must order before 11.00am to ensure delivery for the next working day. This excludes weekends and bank holidays.

*Extra charges or restrictions will apply to certain UK postcodes. These include parts of Scotland, The Highlands, Northern Ireland and offshore Isles. Please note Next Day delivery is not available to these locations. Please click here for a full list of postcode exclusions and contact us today for a personalised quote.

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