Tetra pH/KH plus liquid

Increases pH and KH in a controlled manner — prevents dangerous pH fluctuations

Liquid formula for rapid action — freshwater and saltwater aquariums

✅ Level: Intermediate — Monitor water parameters during use. Adjust gradually for safety.

Tetra pH/KH plus liquid is a precise water conditioner for the controlled increase of pH and KH values. A stable KH (carbonate hardness) is essential for preventing dangerous pH fluctuations that can cause stress and disease in fish. Ideal for aquariums with fish that thrive in a higher pH, such as African cichlids or marine aquariums.

🔧 Product specifications

🚚 Delivery & warranty

• Fast delivery from our store — ready to use immediately
• Shipping Tuesday or Friday → Read more about shipping
• Delivery with track & trace, usually within 1–2 business days
• Problem with your order? We will resolve it together. Please contact our customer service.
• Free shipping from €59,-

✂️ Usage tips

Always adjust pH gradually — never more than 0.5 pH per day. Monitor pH and KH with a test kit before and after treatment. A stable KH of at least 4–6 dH prevents dangerous pH drops (‘pH crash’).

💡 Tip

Ideal for African cichlids from the Rift Valley (Malawi, Tanganyika) that thrive at a pH of 7.5–8.5 and a high KH.

❓ Frequently asked questions

What is a pH crash?
A pH crash is a sudden sharp drop in pH, often caused by excessively low KH. This is very dangerous for fish. A stable KH prevents this.

What is the ideal pH for African cichlids?
African cichlids from the Rift Valley thrive best at a pH of 7.5–8.5 and a KH of 10–20 dH.

Do you have another question? Feel free to contact us — we're happy to help you make the right choice for your aquarium.