API Master Test Kit holder

A simple holder for API Master Test Kit test tubes. Use it while filling up the tubes and waiting the 5 minutes for results and as a drying stand once you've rinsed everything. Knocked a tube while testing!I also had no good drying solution and now I do. I just leave it next to my tank over night and everything is good to be put away. I have the master kit and the GH/KH test kit so I have a total of 6 test tubes.Pro Tip, add a strip of painters tape on the front and you can write labels so you don't forget what's what. ( The thinner painters tip fits perfectly since the base is an inch tall)