The Marine Alkalinity (dKH) Checker® HC Calibration Check Set - HI772-11 provides a simple solution to validating the Marine Alkalinity Checker® HC - HI772 that has a range of 0.0 to 20.0 dKH. This high-quality set of standards is manufactured in our state-of-the-art facility and comes supplied with a Certificate of Analysis. The Certificate of Analysis provides the lot number, reference values and expiration date for traceability when certifying the Checker® HC.
Supplied with Certificate of Analysis
Standard value of Standard value of 5.0 dKH+/-0.3 @25C
I purchased 2 of these lights to go on a 40 long tank and I like the look of the lights sitting above overhead the tank.
Of course they have 2 settings one which is a soft blue for evening.
The quality and price have pleased me too.
Guppies loved it and I think my puffer will need a few more tries to take to the frozen daphnia, but she’s a diva about all foods until she’s tried them a few times.
