Koran Angel | JuvenileThe Koran Angelfish (Pomacanthus semicirculatus) is a beautiful fish. A full grown adult will require an 84 220 gallon+ aquarium with plenty of hiding places and rock work for grazing on. They can become territorial and keeping them with other Angels can be tricky. They are almost always aggressive towards their own species. Juveniles usually take 18 24 months to completely transform to their adult colors. Koran Angels are likely to nip at stony and