They're in QT
so that they can be watched carefully. They're being watched for eating and waste removal patterns, health, behavior, etc. Should a disease present itself while they're in my QT
tank I am able to treat just these fish rather than all of the fish in my main (once a fish in your main has ich it is there until you treat the tank and all of the fish). Once the new fish are treated (like my Purple Tang) then they are able to be moved into the main without passing on some horrible disease or parasite to the rest of my tank. Should one not be eating it will be easier to spot in QT
than in my main. If one of them is weak from travel/transit/stress they have time to get stronger before being added to my main where things are pretty fast paced. Getting a fish out of my main would be some pretty tricky business and I'd rather not have to if it is preventable. When I took the fish from their bags and put it into my QT
I didn't take any of their water. I netted the fish from their acclimation buckets and plunked them into my main. I'll do the same when I move them from QT
into my main after doing tons of water changes over the next 4w.
is a good practice if you don't want to lose precious livestock. I have too much invested in my main to add anything to it that I haven't properly QT