Help with quarantining?

[Katweet]

I'm starting up a 29g barebottom fowlr, I currently have ~30lbs LR curing. There's a hob filter running with carbon (just in case) and floss. I plan on using an extra 10g as a QT tank, and the hob with the filter floss to stave off a mini-cycle when I introduce my first fish.

I plan on adding a royal gramma first, then a percula clown, then one more small fish I haven't yet decided on (feel free to make suggestions!). My question is, does the gramma need to be QT'd in the 10g before I add him to the DT, since he's first?

 

[saltyphish]

Yes! If he has ich or brooke it will infect the new tank. Any future fish placed in the DT will be at risk of contracting it. The solution to such a scenario would be to catch all the fish in the DT and QT/ treat and allow the DT to remain fallow for 72 days. Problem is you can never be sure if the fish has it to begin with. A healthy fish may carry enough of the parasites to infect your tank but never show signs of infection. I actually made that mistake when I bought my first clown fish. I figured no other fish in the tank so should be no big deal right? Wrong!