Over the last 6 months I have had 4 Yellow Tangs die in my aquarium. Other fish do well, clown, wrasse, Goby, Blennie. My current water reading are: pH 7.83, temp 75.6°,H2O hardness 425 ppm, Alkalinity 300 ppm,Salinity 1.022, nitrite 0.0, Nitrate 0.0, Ammonia 0.0. I am using phosban in my filter because I am getting lots of hair algae. Any ideas? Thanks
J_Vee
J_Vee