Favites corals are large polyp stony (lps) corals. They have an encrusting base but usually grow forming a dome-shape. Favites corals are also known as "brain corals" or "closed brain corals." The corallites of a Favites coral form to create one fused/shared a wall. Sometimes this can make it hard to distinguish between a Favites coral and a Favia Coral. (They look very similar, but the Favia coral will form two distinct walls with a visible groove in-between these walls instead of the one fused/shared wall like the Favites coral.) We allow some grace in the identification of these corals as it can be very hard to determine in smaller specimens. They both require similar care, so it's okay if you aren't 100% which type you have right away. Favites corals appear in a variety of colors and patterns.