Fish with Ick can be treated three ways, TTM, Hypo, or Copper.
TTM is out as you have a tank. Hypo works on ick only, but many feel it’s less stress on delicates like tangs.
Copper is very effective, too little won’t work, too much kills the parasite and fish.
Manufacture instructs should be followed closely.
If going Hypo, 1.009 is the number to maintain.
Keep in mind, fish ok with quick decreases, but when you increase salinity, no more than .002 per day.
TTM is out as you have a tank. Hypo works on ick only, but many feel it’s less stress on delicates like tangs.
Copper is very effective, too little won’t work, too much kills the parasite and fish.
Manufacture instructs should be followed closely.
If going Hypo, 1.009 is the number to maintain.
Keep in mind, fish ok with quick decreases, but when you increase salinity, no more than .002 per day.