fish medications

Hi, I have a pair of clownfish in a 105l tank. The tank is just over a year old now. Water parameters are as follows Salinity - 1.0275 [Red Sea Coral Pro Salt salt + RODI water]. My ATO malfunctioned, and I am slowly bringing this down. pH - 7.75 Ammonia - 0ppm (Salifert test kit) +...