Measures the most important aquarium levels quickly and accurately.
Follow API Easy Care Guide and use the REEF MASTER TEST KIT:
The REEF MASTER TEST KIT tests 4 key parameters to keep reef inhabitants healthy. The REEF MASTER TEST KIT is highly accurate and economical. For ease of use, it comes with 4 glass test tubes with snap-tight caps & a convenient holding tray. The kit also includes a complete, step-by-step instruction booklet with computer calibrated color chart which provides information on how to correct unsafe water conditions.