Among my very favorite groups of fish, I have kept a tang in every one of my reef tanks since 1988. Always seems like there are many questions here on RC about keeping them, and I also get occasional questions via PM. Thought I'd share my approach with these fishes - not as the only way to keep them, but as one way to keep them. My Tang 'rules':
Keep in mind that there are things you can control like tank size and tank-mates; but also things you cannot control like individual temperament. The latter can well dictate why some folks are successful with a particular mix while others are not. A friend of mine has an Achilles that will tolerate no new tangs, whereas mine is relatively accommodating.
I currently keep 8 tangs. Three zebrasomas (yellow, purple, desjardini), regal, chevron and Achilles in my main 265 display, a small scopas in my 60 frag tank, and a zebra in my 120XH refugium.
- Although I have pushed the limits a bit, the RC guidelines on tank sizes are reasonable. These fish need space, and while they can be 'crowded', problems usually result.
- I QT all Tangs, and treat them prophylactically for skin parasites with chloroquine phosphate
- Although I have kept multiple zebrasomas and bristles, I only ever keep a single acanthurus genus per tank.
- Not a big proponent of introduction order (with a couple of exceptions); proper QT conditions fish and enables it to survive most hazing.
- They need lots of food to remain healthy - they are not efficient metabolizers
- Tangs are never 'friends', it's tolerance at best.
Keep in mind that there are things you can control like tank size and tank-mates; but also things you cannot control like individual temperament. The latter can well dictate why some folks are successful with a particular mix while others are not. A friend of mine has an Achilles that will tolerate no new tangs, whereas mine is relatively accommodating.
I currently keep 8 tangs. Three zebrasomas (yellow, purple, desjardini), regal, chevron and Achilles in my main 265 display, a small scopas in my 60 frag tank, and a zebra in my 120XH refugium.