What to do if API 5 in 1 Test Strips are not working
The API 5 in 1 Test Strips will measure the Nitrate, Nitrite, pH, GH and KH parameters in your tank water. If this product does not appear to be working correctly, or at all, then you can take a look at this troubleshooting article from Aquarium Blueprints to see what you can potentially do. 1. … Read more