I have salifert test kits that i bought and if i used it three times it was alot. Prefer API test kit. I have nitrate,KH/Alk and Calcium all three for 30
calcium-02-2014 retail 25.99
kh/alk-03-2014 retail 14.99
nitrate-04-2011 retail 20.99
calcium-02-2014 retail 25.99
kh/alk-03-2014 retail 14.99
nitrate-04-2011 retail 20.99