So I got some corals from LFS. They look happy and healthy and LFS said he only uses Natural sea water. I was curious what will be his water parameters so I did my hanna test and got the following. Salinity 1.026. Calcium 509, phosphate .06, alk 5.0 (tested twice). Am I doing something wrong with my alk at 8.4? Seems like his corals are doing good?