I have two tropical fish tanks, I check the water in both tanks every week. I check ammonia and pH. I haven't lost a fish in years.

Perfect to know parameters of water

very accurate test kit highly recommend.

These work as expected; however, both were damaged. It was during shipping as a padded envelop was the only packing material. Both have leaked and made a mess.

Received the wrong test kit.

I ordered an Ammonia Test kit but received a Nitrate Test kit.