Hi all, my 55 gal tank is about a month and a half old now. Temp 81, salinity 1.024, ammonia 0, nitrate 0. I've gone through the diatom bloom and I've got coraline and a bit of green algae growth. I have 4 corals in the tank. 4 of my 9 snails are just hanging out at the top of my tank. Some just above the surface some just under. Does this mean anything significant? Any input would be appreciated.