Well at the LFS a few weeks ago my Phosphate was 0.03 with Salifert. Today I received my Hanna Phosphorus checker. I need to add phosphates to my tank at least a little. Picked up some reef roids the other day cause I knew I was low on nitrates 2-5. So Hanna says 0 really could be as high as 0.013. I don’t feel comfortable adding even a goby to 3g total volume so I will stick with feeding the corals at least once a week. But very lightly been using an old Salifert scoop with 5 or so drops of water and targeting around the corals. We will see what happens and will watch phosphates and nitrates. Anyone have additional advice I don’t want to have to dose if I can keep from it.