The khalkalinity pro test kit from red sea is extremely accurate at 0025meqlelement khaccuracy 0025 meqltest type titrationnumber of tests 75all pro test kits come in a durable plastic housing and use optically clear analytical lab grade glass test vials easy to use drop and shake titrator for use with all titration test with a high degree of accuracy drop size of 001mlrobust coral skeletons are essential for all reefs and only acheivable by ensuring the basic elements cal