I usually shoot for alk 9.5 - 10, Ca 450 - 500, mg 1400 - 1500, n03 0 - 20, p04 0-0.04. Salinity 1.024 - 1.026 Tht works pretty good all around for me. For test kits I do Hanna - alk and p04, Salifert - Ca and Mg, API - Nitrates.
How often do u do water changes? What's your salinity?