Queen Angelfish | Holacanthus Ciliaris – Tank RequirementsLarge, striking angelfish from the Caribbean. Queen angelfish are one of the most beautiful and popular angels. This size can start in a 100 gallon, but will eventually need a minimum 180 gallon tank. Not a good choice for a reef tank. It does well in a community or aggessive tank.If you would like to keep multiple large angels, you must have minimum 180 gallon tank. Ideally, add all large angels at the same time.Queen Angelfish | Holacanthus Ciliaris -FeedingLike all large angels, Queen Angelfish | Holacanthus Ciliaris, do best with live rock to graze on. Feed a variety of meaty and vegetarian items. Ideally, have nori or spirulina available almost continuously.