water parameters

For a new reef tank set-up, what parameters do you test for? How often do you test? Which are the most important? Any tips on how to keep track of my parameters over time?

Hello everyone. I’m starting up a new tank and replaced the filter cartridges as well as the membrane on my RO buddy. After running the two cartridges I installed the membrane. I then ran that for 30 minutes as instructed before installing the DI component. My water is coming back around 30 ppm...

Pulled the trigger and purchased a Trident yesterday. The initial reading came back Alk 8.7 Cal 405 Mag 1080 Which I was surprised by since my Mag is usually high (testing with Red Sea Kit) but i know manual kits can be funny at times. The next reading a few hours later came back Alk 8.7 Cal...

Hey I just went to my local LFS to get my water tested they said that water parameters are perfect does this mean I’m ready to add corals and fish? I just want to make sure I’m doing this right.