Test kit Tetra 6in1, model 98661, 10 pcs — aquarium water test strips for pH, nitrite, nitrate, hardness, chlorine, alkalinity

Tetra 6in1 test kit (10 strips) provides a quick multi-parameter check of freshwater aquarium water. Each strip measures six essential water quality parameters: pH, nitrite, nitrate, general hardness (GH), chlorine and alkalinity. The strips are intended for routine monitoring to help maintain stable conditions, reduce risk of fish stress and detect changes that require water treatment or maintenance.

Advantages

The test strips offer fast visual results within seconds, allowing regular checks without complex equipment. They combine six tests on a single strip for efficient sampling and minimal handling. The format supports routine control of common water quality factors relevant to freshwater aquaria, enabling early detection of nitrite or nitrate spikes, hardness shifts, chlorine presence or pH imbalance.

Suitable for

• Freshwater community and species aquariums
• Routine water quality checks for hobbyists and small-scale keepers
• Monitoring after water changes or new fish introductions
• Quick screening before dosing treatments or adjusting filtration

Key specifications

• Number of test strips: 10
• Measured parameters: pH, nitrite (NO2-), nitrate (NO3-), general hardness (GH), chlorine (Cl2), alkalinity
• Type: multi-parameter colorimetric test strips
• Intended water type: freshwater aquarium
• Result format: color change on strip matched to reference chart

How to use

Dip a single strip into aquarium water for the time specified on the package, remove and shake off excess water, then compare the color pads to the included reference chart within the recommended read time. Use a clean container if testing water removed from the tank. Record values for pH, nitrite, nitrate, hardness and alkalinity to track trends over time and decide on corrective actions such as partial water changes, filtration adjustments or specific chemical treatments.

Usage recommendations

Store strips in their original container in a cool, dry place and seal the lid after use to preserve reagent stability. Test regularly—weekly or after maintenance events—and interpret results in context of aquarium size, stocking and recent changes. If high nitrite, nitrate or chlorine are detected, take immediate corrective measures such as water changes or using suitable conditioners formulated for aquarium use.