About 10 days ago I purchased a six line wrasse from my LFS and I’ve noticed white dots on his fins. I have 3 fish in my tank - sixline wrasse, yellowtail damsel and a falco hawk fish. The six line is the only one with dots on him. He looks perfectly healthy and exhibits normal sixline behaviour, it seems like ich to me as I know it begins on the fins. Is it ick and how should I go about treating it?? (Sorry about picture quality)
Tank details:
20 gallon
78F
Salinity: 1.025
KH: 11.5
Calcium: 450
Magnesium: 1350
Nitrate: 15
Phosphate: 1
The tank has been running for 1 year 3 months

Tank details:
20 gallon
78F
Salinity: 1.025
KH: 11.5
Calcium: 450
Magnesium: 1350
Nitrate: 15
Phosphate: 1
The tank has been running for 1 year 3 months

