hypo and still ick?

cowabonga

Member
my fish has been through hypo for the last month. And this week i was in the process of raising up the salinity when i noticed the flame angel scratching against a rock. I saw my tang do that last week. But there has been no visible sign of ick anywhere. The only changes i made was that i added an existing powerhead from the main tank into their hospital tank. Also i have been using water from my main to mix food. Is it possible for ick to get back into my tank? My salinity is at 1.12 right now and im scared of bringing the salinity back up. Is there long term effect from leaving fishes in the hyposalinity mode for too long?
Or just because they scatch it doesnt mean its ick? Thanks alot.
Ps ive been using a refractometer.
 
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