It is possible that your tank has ick all the time and the fish are resistant to it, so there is no real major outbreak. When you add a new fish, it is weak and stressed, thus the ick finds it to be an easy host. I would suggest then since you are setting up a new tank, move all the sand rock coral etc. into it and keep it fishless for 6 weeks. Meanwhile, keep the fish in a QT tank and treat them for ick to make sure they are 100% free of it. When you reintroduce them to the new tank, it will now be ick free also, having been kept fallow. Thereafter, any new fish should be kept in QT to ensure the ick is never reintroduced, plus they will have time to get over the stress of handling before they are put into the tank.
__________________
I retired and got a fixed income but it's broke.
Ed
_______________________________________
50 gallon FOWLR, 10 gallon sump.
130 gallon reef, 20 gallon sump, 10 gallon refugium.
10 gallon quarantine.
60 gallon winter tank for pond fish.
300 gallon pond with waterfall.
|