







🧬 Keep your aquarium’s heartbeat steady with precision KH testing!
The sera kH-Test 15 ml kit offers an accurate, easy-to-use titration method to monitor carbonate hardness in both fresh and saltwater aquariums. With a clear color change indicator and a compact 15 ml volume, it empowers aquarium enthusiasts to maintain stable pH levels, ensuring a healthy environment for fish and invertebrates. Trusted by over a thousand users with a 4.6-star rating, this test kit is a must-have for proactive aquatic care.
| ASIN | B0013ZEFPW |
| ASIN | B0013ZEFPW |
| Best Sellers Rank | #182,829 in Pet Supplies ( See Top 100 in Pet Supplies ) #280 in Aquarium Test Kits |
| Brand Name | Sera |
| Color | YELLOW |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,204) |
| Date First Available | September 1, 2009 |
| Date First Available | September 1, 2009 |
| Is Discontinued By Manufacturer | No |
| Item Dimensions LxWxH | 1.57 x 3.54 x 5.51 inches |
| Item Package Dimensions L x W x H | 5.28 x 3.54 x 1.65 inches |
| Item Weight | 0.05 Kilograms |
| Item model number | 4210 |
| Item model number | 4210 |
| Manufacturer | Sera North America, Inc. |
| Manufacturer | Sera North America, Inc. |
| Number of Items | 1 |
| Product Dimensions | 1.57 x 3.54 x 5.51 inches; 1.73 ounces |
| Target Audience Keyword | fish |
A**A
Worth it!
This titration test is easy, accurate and worth it. You can easily see the color change when it happens and have confidence in the results, unlike test strips. KH or alkalinity is very important for fresh and salt water aquariums. If it’s not in the range that promotes pH stability, then the ph will shift too fast and cause harm/death to your fish and invertebrates. If you have a hard time reading test strips for KH, try this!
F**R
I Like it
This test work it. I tested it with RO/DI water, so I knew the exact KH.
L**.
dKH reading of my pond
It help me understand the buffer between my pond and the PH reading. With a low dKH reading PH was always in jeopardy of crashing.
M**.
It works
I like the quality of the materials, the glass vial with stopper, and the dropper itself has a nice design. As to its accuracy, it matches my API test kits, and is no more difficult to use.
J**N
A must for your aquarium
This test kit is a must if you own an aquarium. It helps you maintain your water quality. It is easy to use and easy to see the results.
Y**G
Better than API
Color is way more pronounced than API. With API I always had to guess the color a little, this one is very dark and pronounced, and very accurate. I tested it with remineralized water so I knew the exact KH.
C**N
Simplest test I have found.
There are so many of these test kits that make you discern between varying levels of the same color. This has simple instructions and results.
M**X
Inaccurate
Not accurate! I got hanna kh meter and this is far from being correct ! It’s outside return policy and wasted so much time &money! Get a good one first kh is really important
L**A
Very good test
T**Y
Conforme à la description, emballage un peu endommagé mais produit correct
A**X
Der sera 04210 Karbonathärte Test hat sich als zuverlässiges Instrument für die Wasseranalyse in meinem Süß- und Meerwasseraquarium bewährt. Die präzise Messung der Karbonathärte ermöglicht eine genaue Anpassung der Wasserbedingungen, um ein optimales Umfeld für Fische und Korallen zu schaffen. Die Anwendung des Tests ist einfach und die Ergebnisse sind leicht abzulesen. Die klaren Anweisungen machen ihn sowohl für erfahrene Aquarianer als auch für Anfänger gut verständlich. Die hohe Genauigkeit des Tests gibt mir das Vertrauen, dass meine Wasserparameter im idealen Bereich liegen. Die Qualität des sera 04210 Karbonathärte Tests zeigt sich in seiner Zuverlässigkeit und Wiederholbarkeit. Die robusten Materialien und die sorgfältige Verarbeitung tragen dazu bei, dass dieser Test zu einem unverzichtbaren Werkzeug in meiner Aquarienpflege geworden ist. Für Aquarianer, die eine präzise Kontrolle über die Karbonathärte ihres Wassers wünschen, ist der sera 04210 Karbonathärte Test eine empfehlenswerte Wahl. Er bietet eine zuverlässige Methode zur Optimierung der Wasserqualität und damit zur Förderung des Wohlbefindens der Aquarienbewohner.
他**寺
蓋を開けるときは平らな場所に容器全体を押し付けながら蓋だけゆっくり回すと簡単に開きます!10mlの水槽水で測れば0.5単位で測定ができるようですね。
M**S
Easy to see. Works well
Trustpilot
1 day ago
1 month ago