Hello everyone. My issue is pretty simple. I'm working on an upgrade and am trying to figure out if I can use my previous quarantine tank, a generic 20 gallon long tank, for the new fish for the big tank, which is a 125. The three fish I'm worried about being about to properly QT in this tank are a Flagfin Angel, Hippo Tang, and I'm thinking a Lemonpeel Mimic, but I may go with a Tennenti instead. From my research, the best size to purchase the fish at is 3-5", so the big question is if they'll be comfortable in the 20L for 2-4 weeks. What are your thoughts?
Of course, all fish will be in there individually, not all together.
Thanks!