Originally Posted by toodle
Another site I see selling marine fish says 100 gallon is enough.
What does a 10" fish need 180 gall tank for alone?
Quick Stats: Blueface Angelfish
Family: Pomacanthidae
Range: Indian and Pacific Oceans
Size: Up to 15 inches
Diet: Omnivore
Tank Set-up: Marine: Coral or rock, plants
Reef Compatible: With caution
Tank Conditions: 72-78ºF; sg 1.020-1.025; pH 8.1-8.4
Minimum Tank Capacity: 100 gallon
Light: High
Temperament: Semi-aggressive
Swimming Level: No specific level
Care Level: Moderate
Reproduction: Egg Scatterer
A blueface is different. This is a smaller angel than the queen. You can see that the blueface still gets up to 15". The rule of thumb is that your tank should be at least 6x the length of your fish for adequate swimming. A 125 should hold a Blueface by itself, but it would have to be a long 125.
I am not one to tell anyone to put a large fish in a minimum size tank. I have a blueface and an emperor in a 180 currently and know that in a couple of years I will need to place them in a 300-500 gallon tank.
Also, all angels are very touchy fish and need to be placed in a tank that has been up and running for at least 6-8 months.