fallow quarantine

I recently started the hobby and lost my pair of clowns due to velvet, I made the mistake of not quarantining and will never make it again. My question is do I have to quarantine incoming fish in a established tank? I just got a quarantine tank and am setting up I intend to treat incoming fish...

Firstly I would like to say that I think I need a award for having a tank sit for 2 years without touching it. Reason was due to thinking that the tank was going to go through my floor being a 100 gallon at my previous home, But finally over the last couple months I have slowly been progressing...

Hey everyone. I am Vann. I really tried to do it right with no live rock and going slow, but I am pretty sure I got some blue hippo tangs with ich and what a ride since then. Being new I didn't know what ich was and in trying to figure it out I have lost more than I want to admit to. Now...