You still have to treat them to be certain they don't have ich and transfer it into the new tank, ASAIK some fish can transfer it without showing signs. In such cases I take a lighter quarantine approach. Any fish that appears healthy and doesn't show signs of ich but came from a potential source of ich I hold them at hypo-salinity for 8 days in a tank that always has hypo conditions. After 8 days they move from that tank to another tank with matched water conditions but completely separate with 100% uncontaminated water. In that tank they are slowly brought back up to normal salinity and closely monitored for another week or so. In theory ich can't make it through this treatment based on it's life cycle and how it's effected from hypo. Just make sure it's ich you're actually concerned about and not something else.
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12-06-2012, 09:41 PM
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