Tetra pH kH Plus

Size : 100ml

For the controlled adjustment of the pH-value and the carbonate hardness level.

• increases the carbonate hardness level and pH-value, e.g. in Cichlid tanks and for other species that require a pH-value between 7.5 and 8.5 and a water hardness of 10 – 15 dH
• allows the carbonate hardness level and pH-value to be precisely adjusted to planned or recommended levels
• compensates for carbonate hardness losses in marine aquariums and carbonate hardness losses that frequently occur in densely populated tanks
• for the acute treatment in the event of a sudden drop in acidity
• very safe and easy to use

Dosage & Directions

What it is. A controlled-release bicarbonate dose, for raising both pH and carbonate hardness (KH) together rather than pH alone.

Tetra’s own dose: 5 ml per 20 L of aquarium water raises KH by around 1 °dH. Scale up proportionally for a bigger increase: 10 ml per 20 L for roughly 2 °dH.

The one hard limit. Tetra’s own instruction: do not raise KH by more than 3 °dH in a single day. Split a larger correction across two or three days instead of dosing it all at once.

How it goes in. Measure with the dosing cap supplied with the bottle, and dose into the aquarium water directly.

Freshness & Storage

Every batch we dispatch carries a minimum of 6 months’ remaining shelf life. Store this product in a cool, dry place away from direct sunlight, with the cap or inner foil closed tightly after each use.

Returns & Replacement

Returns are accepted within 7 days of delivery, provided the item is unused and in its original packaging. Manufacturer-sealed items cannot be returned once the seal is broken, and sale-priced items are not refundable.

If your item arrives defective or damaged, message us on WhatsApp with your order number, or email us if you would rather, and we will replace it. Approved replacements are delivered within 3 to 5 business days. Transit damage is covered by insurance on every shipment. If tracking shows delivered but nothing reached you, tell us within 48 hours, which is the reporting window Indian couriers allow. Damage caused during installation or use is not covered; replacement spares for such cases are chargeable.

Full terms are on our Cancellation & Returns page.