Hello everyone! I have been using the API Reef Master test kit and I am almost out of the calcium reagent. I decided after doing some research that Salifert may be better than the API kit so every time I test, I am using both to get used to the new kit (I’ve only tested 2 times) but both read drastically different! My API is reading 360 and my Salifert is reading at 440 and I do not know which one to trust!