Tetra Test 6-in-1 Test Strips (for Freshwater) 23 sheets (4 packs of 5 sheets + 3 bonus sheets)

This is a set of 23 sheets in total, consisting of 4 packs of 5 sheets each, plus 3 opened sheets.
We believe the 3 opened sheets are usable, but please consider them a bonus.
*Expiration Date: June 2026

For Freshwater Use Only
[Features]
● These are water quality test strips that allow you to quickly and easily check 6 water parameters simultaneously in one step.
● No special equipment or complicated procedures are required. Simply dip the test strip in water for 1 second for an easy check.
● We recommend checking once a week to maintain an optimal aquatic environment.

[Measurable Parameters]
● pH (pH: 6.4-8.4)
● Carbonate Hardness (KH: 0-20°dH)
● General Hardness (GH: <3°dH to >16°dH)
● Nitrite (NO2-: 0-10 mg/L)
● Nitrate (NO3-: 0-250 mg/L)
● Chlorine (Cl2: 0-3 mg/L)
Contents: 5 sheets (5 tests)
Precautions:
*This product is for ornamental fish tanks only. Do not use for any other purpose.
*In aquarium water with low buffering capacity where KH (carbonate hardness) is 0-3°dH, pH may not be measured correctly.
*Do not touch the pad area with the reagent with your fingers.
*Do not expose the test strips to running water.
*For details on each measurement parameter, please refer to the included instruction manual.