


🔬 Stay ahead of your reef’s health with precision potassium testing!
The Salifert RTKA Potassium Test Kit offers fast, easy, and highly accurate potassium measurements ranging from 250 to 470 ppm, essential for maintaining vibrant coral colors in marine aquariums. Designed for up to 40 tests per kit and made in the Netherlands, it’s the trusted choice for reef enthusiasts seeking reliable, professional-grade water testing.
| ASIN | B0084CO4LC |
| ASIN | B0084CO4LC |
| Age Range Description | All Stages |
| Best Sellers Rank | #59,395 in Pet Supplies ( See Top 100 in Pet Supplies ) #96 in Aquarium Test Kits #561 in Aquarium Water Treatments |
| Brand Name | Salifert |
| Color | Clear |
| Country of Origin | Netherlands |
| Customer Reviews | 4.2 4.2 out of 5 stars (126) |
| Date First Available | December 21, 2012 |
| Date First Available | December 21, 2012 |
| Directions | Please see packaging for directions. |
| Included Components | See packaging |
| Is Discontinued By Manufacturer | No |
| Item Dimensions LxWxH | 4.3 x 2 x 5 inches |
| Item Package Dimensions L x W x H | 4.33 x 3.43 x 1.77 inches |
| Item Weight | 3.2 ounces |
| Item model number | RTKA |
| Item model number | RTKA |
| Manufacturer | Royal Aquatic LLC |
| Manufacturer | Royal Aquatic LLC |
| Model Name | Potassium Test Kit |
| Number of Items | 1 |
| Product Dimensions | 4.3 x 2 x 5 inches; 3.21 ounces |
| Size | 7 Piece Set |
| Specific Uses for Product | Water Testing |
| Target Audience Keyword | Fish |
A**R
salifert is great
easy to use and accuracy is good enough for your reef tank
A**Y
It works!!!
I recommended this for a friend who is on a low-potassium (K) diet. I figured that if it worked for aquarium water it would work for water that boiled potatoes, which have a high K content. After one boil in a full pot of water the K level of the boiled water was high. But after three boils the K level in the boiled was significantly lower. (Boiling is recommended by doctors for lowering K content.) This test helps her to know if boiling or other water-soak methods to lower K in food will help her decision on her diet. Still, I recommended that she not gorge on boiled potatoes but only eat a small amount to satisfy a craving.
V**�
Very good 👍
Very good 👍
E**C
Todo bien
M**E
They are selling old stock that expires in few months.
It works. My potassium tested at 430ppm and I believe that is accurate since I have been dosing aqua forest. 1 star because the test kits they are selling are old stock. My kit expires 10/2018 so in 5 months I have to buy another regardless of how much I use. The picture in the top clearly has an expiration date of 7/2020 so they are caught red handed that it is not a short lived kit and they are selling old overstocked products.
J**.
Excellent, but...
You need to be extremely particular when using this kit. It is a quality test kit, but very sensitive to mistakes. Good value. The color change is a bit harder to see, so I prefer to just set tank to 470ppm, and if 1 drop makes it turn blue, it's good. IME, 400ppm is the MINIMUM K level to shoot for.
K**U
Great item and what we needed
Hard to find locally and just what my husband needed for his tanks.
E**O
Easy test that's accurate
Easy to use and reliable
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