Ensure you have plenty of test tubes on hand for your API liquid test kit with API's replacement test tubes. Clean, undamaged test tubes are an essential tool for keeping aquarium conditions healthy. Dirty test tubes can alter water test results while cracks and other damage can leak or harbor bacteria, which can also lead to inaccurate test results. Each package comes with 24 glass test tubes and caps, so you'll have plenty of spares ready to go!
Every purchase comes with 24 test tubes and caps to replace lost or damaged tubes.
suitable for use with all aquarium water testing kits.
Clean, undamaged test tubes are an essential tool for keeping aquarium conditions healthy.
Dirty test tubes can alter water test results, making them less accurate.
Test tubes with cracks or other damage can leak or harbor bacteria which can also lead to inaccurate test results
Replacements are necessary. My furry little friends love to knock over my test tubes...I now have a test tube rack because I was afraid they’d go to jump off the counter and come in contact with the broken glass! These are literally the same test tubes you get in the API test kits so I’m very happy to have them.
Nice to be able to replace broken tubes
on Jul 13, 2018Top 250 Contributor
The second time I used my API kit I broke a tube. I got these and it has helped to have extra tubes on hand. I can also test all my tanks and then clean all the tubes instead of between each tank. It would just be nice if it wasn't so easy to break the tubes.
on Jun 4, 2018Top 500 Contributor
Accidents happen and it's always great to have these extra testing tubes on hand. Besides using them for Test Kits, I use them to store my Frozen Foods for the Marine Tanks and Freshwater Tanks, makes using the pipettes so much easier for proper doses.
Delighted they have replacements tubes!
on Sep 22, 2017Top 25 Contributor
So glad I did not have to buy new test kits just to replace old tubes! This is a winner!
On line order
on Sep 18, 2017
My order came quickly, and since they were glass tubes..unbroken!