Date is 7/2019 so I'm not sure if it's expired but you can test tap water or aquarium water and you'll get the same results. Even if it shows the right colors for comparison, it doesn't tell you what the level should be. I tried to go the cheap route with this and it wasn't smart. Coming back, don't trust this object of your fish life.
π Seachem Stability 250ml: The Ultimate Fish Tank Stabilizer for Freshwater and Marine Aquariums
9 Review
Highly Efficient Seachem Purigen for Freshwater & Saltwater Filtration
9 Review
Fish Water Quality API Test Kit
9 Review
π§ͺ Enhanced API Replacement Test Tubes with Caps - Ideal for API Freshwater Master Test Kit - 24 Count Box
8 Review
Greenpro Micranthemum Monte Carlo: Live Large Pearl Grass Aquatic Plant In Tissue Culture Cup For Freshwater Fish Tanks And Aquariums
49 Review
𧲠Efficient Magnetic Fish Tank Cleaner: KEDSUM Floating Clean Brush with Handle Design
34 Review
Steam cleaner Deerma Deerma DEM-ZQ610 EU, white/red
68 Review
Vacuum cleaner TEQQO Aquastick 3 in 1 Power, grey/turquoise
26 Review