Whats the minimum size if I plan to hold tangs without stressing them out? I have a 20 high that I was going to use as a Fuge but instead ill be using it as a qt tank. Raffle grabber
depends on how big it is if its 6" or greater I would say at least a 55 smaller  4-6" a 40b and 1-4" a 29 only on a temporary basis
What about tangs I'm goin to get small ones tangs are my main worry for quarantine. I'll be keeping them in for atleast 4 weeks. Raffle grabber
This is an old post and I hope that you have already setup that 20 gallon as a quarantine for those tangs. John Mann that we lost to Seattle had a great quarantine tank out of a 20 gallon, he really showed me how important it is to quarantine fish and how you can drastically increase the survivability of fish by isolating them for food training where new fish do not have to compete.
