6in1 Water Quality Test Strips - 50pcs Submersible Place carbon after mechanical filter

Place carbon after mechanical filter media such as sponge or filter pads in your media stack

Free Chlorine: detects chlorine in tap water

meaning they resist breakdown and last longer in your filter

affect water hardness

6in1 Water Quality Test Strips - 50pcs Submersible Place carbon after mechanical filterDescription: Knowing what's happening in your water is the foundation of keeping healthy fish. Most problems in an aquarium, stressed fish, disease outbreaks, unexplained deaths, trace back to water quality issues that could have been caught and corrected early with regular testing. Test strips are the fastest and most accessible way to stay on top of your water parameters, particularly for aquarists who want a quick check without the time commitment