Should I treat and quarantine all new fish?

[Tom Camp]

I bought a PB Tang and he got ich. Eveyone died in days except my Blue velvet and engineer goby. I have been ready so much on here. Im thinking of fawning my tank foe 8 weeks. Now I'm thinking of moving the velvet and engineer goby to a quarantine tank while fawning. I was going to put 15 gal. If Dt water and some live rock in a 20 gal until I decide how I'm going to treat. I need them in there long enough for my DT to fawn. Should i wait to treat after a month or can I treat and leave them in the 20 quarantine for 8+ weeks to fawn. This os my first post so bare with me. Ive been reading for a couple of years so this is where I'm getting my info.

 

[Kmiller035]

Yes, yes and if you really trust the person who had the fish before you...YES. Quarantine every fish.


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[Bruce51]

If your DT had Ick, 72 days min fallow, and any surviving fish need to be treated for Ick in a QT tank


I QT every fish A minimum of 45 days
3 days to get use to QT tank
14 days of prazipro
28 days cupermine

But if your fish died so quick I dont think its Ick,

If the fish looks good after that into the DT
If it dosnt look good
100% water change in QT
observe for at least 7 days-
then treat what ever needs to be treated