Tetra Test Strips will help you understand the importance of water quality. By having the correct parameters and good water quality, it will help your fish and plants live longer and healthier lives.

How to use:

• Read enclosed instructions for use.
• Move test strip back and forth in the water for approximately 5 seconds.
• DO NOT shake off the excess water.
• Keep the strip in horizontal position with the test field side up for 15-30 sec.
• IMPORTANT NOTE: Do not touch the test fields or hold them under running water.
• Place the test strip in the correct position against the colour chart on the side of the container. Take the reading by comparing the colour obtained with the colour chart.
• Check the meaning of the readings in the table included and read the advice on corrective actions to take.

It is recommended to test every 2-3 days in new aquariums and once a week in established aquariums.

Ammonia (NH₃/NH₄⁺)

• In aquarium water, ammonium (NH4⁺) is produced by the bacterial decomposition of uneaten food and plant matter as well as fish waste.
• Although ammonium is an important nutrient for plants, this is dependent on the pH level.
• If the pH level is above 7, it can convert to ammonia (NH3) which is then toxic for the fish.
• Above pH 7 even in small amounts of 0.25 mg/l, ammonia will still pose a threat to the fish with symptoms like rapid gill movements, nervous swimming, and loss of appetite.
• In higher concentrations from 1.0 mg/l and above, it can be lethal.
• If a high level of ammonia is detected, a partial water change must be first carried out.
• If necessary, the water pH level must be lowered to avoid dangerous ammonia build-up by using Tetra pH/KH Minus.
• Testing the presence of ammonia/ammonium (NH3/NH4 +) in total, besides nitrite/nitrate provides important information about the aquarium water quality.

Suitable for use in:

• Tropical aquariums.
• Cold water aquariums.
• Ponds.

Not suitable for use in marine aquariums.

Useful tip:

• With the Tetra Aquatics App you can determine water values very quickly, safely and easily using your smartphone.