You may have had the same result from a shipment from an internet source. I recommend a U.V. sterilizer in most applications just to reduce a know protozoa that lives on the fish and is known to mimic ich in appearance. It will manifest due to stress.
A quarantine tank need not be fancy but even a plastic bin with filtration will do the trick...it does make it hard to observe the fish though.
A quarantine tank need not be fancy but even a plastic bin with filtration will do the trick...it does make it hard to observe the fish though.


