--- product_id: 254347798 title: "Sera Kh/Ph-Plus Water Stabilizer 100 Ml" brand: "sera" price: "€ 16.00" currency: EUR in_stock: true reviews_count: 4 category: "Sera" url: https://www.desertcart.at/products/254347798-sera-kh-ph-plus-water-stabilizer-100-ml store_origin: AT region: Austria --- # Optimized for African cichlids & community tanks Stabilizes pH & KH levels Precise dosing: 5ml/30L = +1°dKH Sera Kh/Ph-Plus Water Stabilizer 100 Ml **Brand:** sera **Price:** € 16.00 **Availability:** ✅ In Stock ## Summary > 💧 Keep your aquarium thriving with flawless water balance! ## Quick Answers - **What is this?** Sera Kh/Ph-Plus Water Stabilizer 100 Ml by sera - **How much does it cost?** € 16.00 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.at](https://www.desertcart.at/products/254347798-sera-kh-ph-plus-water-stabilizer-100-ml) ## Best For - sera enthusiasts ## Why This Product - Trusted sera brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Fish-Approved Formula:** Creates ideal conditions for sensitive species like African cichlids - • **Tailored Hardness Control:** Easily raise carbonate hardness by 1°dKH per 5ml in 30L water - • **Durability Meets Simplicity:** Ensures long-lasting water quality with minimal maintenance - • **Precision Testing Recommended:** Use with sera pH and KH tests for perfect water chemistry every time - • **Buffer Your Aquarium’s Balance:** Prevents dangerous pH swings for a stable aquatic environment ## Overview Sera KH/Ph-Plus Water Stabilizer is a liquid treatment designed to precisely and safely increase carbonate hardness (KH) and gently raise pH in freshwater aquariums. By stabilizing these critical water parameters, it prevents harmful pH fluctuations, supports fish health—especially for species like African cichlids—and ensures durable, easy-to-maintain aquarium water. Dosage is 5ml per 30 liters to raise KH by 1°dKH, with recommended gradual adjustments and regular testing for optimal results. ## Description The carbonate hardness (KH) is one of the most important water parameters in an aquarium. A majority of the fish species kept in freshwater aquariums refers relatively hard water. Furthermore, the KH serves as a buffer that prevents dangerous pH value variations (among others, rapidly sinking pH value). The KH should be kept at least at 6°dKH for all community tanks as a basic rule (considerably higher for special cases such as African cichlids). This ensures the fish do well, and the aquarium water turns out particularly durable and easy to maintain. sera KH/pH-plus precisely and lastingly raises the KH to the desired value. The pH value is gently raised as well and, above all, safely stabilized. Recommended dosage: 5 ml sera KH/pH-plus increase the carbonate hardness in 30 l of water by 1°dKH. We recommend raising the KH in an aquarium by not more than 2ºdKH per day. Check the pH and KH values with the sera pH-Test and the sera kH-Test 30 minutes before and after the addition. Review: Instructions not in English. Far stronger than it says. Unsafe at prescribed dose - It came in all in German, no English instructions. So I went on their website and it says put 5ml in 30litres of water. I have a 120litre tank so you'd think I'd need 20ml. Wrong. I put 3ml in 120litres of water and the readings are off the scale. I'm having to do multiple water changes to get it down. This is dangerous if you follow the instructions. You are best off buying something else... 4 days later and 2 water changes a day it's destroyed my nitrogen cycle. How can they get away with peddlin this sh*te Review: Buon prodotto! - Il suo lavoro lo fa molto bene! Buon prodotto! ## Features - Is effective against biogenic decalcification - The carbonate hardness (KH) is one of the most important water parameters in an aquarium. - The KH serves as a buffer that prevents dangerous pH value variations (among others, rapidly sinking pH value). - Ensures the fish do well, and the aquarium water turns out particularly durable and easy to maintain. - Creates appropriate conditions (e.g. for African cichlids) ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0013ZAGLY | | Best Sellers Rank | #19,095 in Pet Supplies ( See Top 100 in Pet Supplies ) #137 in Fish Medication & Health Supplies | | Brand | Sera | | Brand Name | Sera | | Customer Reviews | 4.3 out of 5 stars 60 Reviews | | Global Trade Identification Number | 04001942038102 | | Item Form | Liquid | | Item Type Name | pond | | Item Weight | 0.32 Pounds | | Item form | Liquid | | Item weight | 0.32 Pounds | | Liquid Volume | 100 Milliliters | | Liquid volume | 100 Milliliters | | Manufacturer | sera | | Manufacturer Part Number | 3810 | | Model Number | 3810 | | Pet Type | Fish | | Target Species | Fish | | Unit Count | 100 Milliliters | | Unit count | 100 Milliliters | | Warranty Description | No | ## Product Details - **Brand:** Sera - **Item form:** Liquid - **Item weight:** 145 g - **Liquid volume:** 100 Milliliters - **Manufacturer:** sera ## Images ![Sera Kh/Ph-Plus Water Stabilizer 100 Ml - Image 1](https://m.media-amazon.com/images/I/61OtZ0CtFDL.jpg) ![Sera Kh/Ph-Plus Water Stabilizer 100 Ml - Image 2](https://m.media-amazon.com/images/I/71hfhTuFqkL.jpg) ![Sera Kh/Ph-Plus Water Stabilizer 100 Ml - Image 3](https://m.media-amazon.com/images/I/41fhcqg7vvL.jpg) ![Sera Kh/Ph-Plus Water Stabilizer 100 Ml - Image 4](https://m.media-amazon.com/images/I/61eVdo9bbGL.jpg) ![Sera Kh/Ph-Plus Water Stabilizer 100 Ml - Image 5](https://m.media-amazon.com/images/I/31IyPgdc2xL.jpg) ## Customer Reviews ### ⭐ Instructions not in English. Far stronger than it says. Unsafe at prescribed dose *by C***N on 19 March 2019* It came in all in German, no English instructions. So I went on their website and it says put 5ml in 30litres of water. I have a 120litre tank so you'd think I'd need 20ml. Wrong. I put 3ml in 120litres of water and the readings are off the scale. I'm having to do multiple water changes to get it down. This is dangerous if you follow the instructions. You are best off buying something else... 4 days later and 2 water changes a day it's destroyed my nitrogen cycle. How can they get away with peddlin this sh*te ### ⭐⭐⭐⭐⭐ Buon prodotto! *by C***N on 22 June 2025* Il suo lavoro lo fa molto bene! Buon prodotto! ### ⭐ Mindesthaltbarkeit seit 2023 abgelaufen *by C***. on 2 September 2025* Mindesthaltbarkeit seit 2023 abgelaufen Was soll ich damit anfangen? Ich riskiere doch nicht, sowas in mein Becken zu schütten. Warum ist der Umtausch nicht möglich? Enttäuschung pur Neu: Mir wurde nun, nach einiger Bemühung meinerseits, doch ein Ersatzprodukt zugeschickt. Auch hier ist das MHD seit 2023 abgelaufen. Meine Empfehlung: DIESES PRODUKT NICHT BEI AMAZON BESTELLEN ## Frequently Bought Together - sera Kh/Ph-Plus Water Stabilizer, 100 ml - Tetra Test 6-in-1 Strips Aquarium to Test 6 Essential Water Quality Parameters in Less Than 60 Seconds, Pack of 25 - sera pH-Test 15ml --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.at/products/254347798-sera-kh-ph-plus-water-stabilizer-100-ml](https://www.desertcart.at/products/254347798-sera-kh-ph-plus-water-stabilizer-100-ml) --- *Product available on Desertcart Austria* *Store origin: AT* *Last updated: 2026-07-20*