Seachem MultiTest™ Ammonia Test Kit
Measures total and free ammonia down to less than 0.05 mg/L.
Multi-cavity plate allows simultaneous testing of up to 6 samples at the same time.
Includes a reference solution for test validation.
Compatible with both marine and freshwater aquariums.
| Parameter | Measurement Range |
|---|---|
| Total Ammonia (NH3 + NH4+) | Less than 0.05 mg/L |
| Free Ammonia (NH3 only) | Less than 0.05 mg/L |
Free ammonia is the toxic form of ammonia (as opposed to ionized ammonia NH4+, which is non-toxic). Monitoring free ammonia levels is critical for maintaining healthy aquarium conditions.
FAQ
Can this test kit be used in both freshwater and marine aquariums?
Yes, this kit is compatible with both freshwater and marine aquariums.
How accurate is the measurement for free ammonia?
The kit measures free ammonia down to less than 0.05 mg/L and is virtually interference-free in both marine and freshwater environments.
Does the kit include instructions for use?
Yes, the kit includes a reference solution and clear instructions for test validation and proper usage.

Elizabeth Mills –
This kit is very reliable. I tested my freshwater tank weekly and noticed a sharp drop in free ammonia after adding a new filter. The results were consistent and easy to read. The multi-cavity design saved time when testing multiple samples.
Theresa Manning –
Good accuracy and simple to use. I appreciate the reference solution for checking consistency. It’s especially helpful when testing new tanks or after water changes.
Jake Hudson –
I’ve used this kit for over a year in both freshwater and marine setups. The free ammonia readings are spot-on and the test plate allows me to check multiple parameters at once without extra effort.