top photo by April,
middle two photos by Bob Fenner,
bottom photo by Mike LaPorte
Common names: Ricordia, mushrooms, button polyps, hairy mushrooms
Natural origin: Indo-Pacific, Caribbean
Sensitivity (Level 1 to 2): Sensitivity
varies some from species to species, but usually tolerant and quite
forgiving. When healthy, these corals can rapidly recover from damage
capture ability depends on species and size of the coral polyp mouth. If
the tank is regularly fed a healthy variety of food, these corals
should have no problem getting what they need.
Lighting (Level 2 to 8): Most can adapt to a wide range of light intensities but sudden changes in lighting can cause bleaching.
Water flow: These corals can thrive in lower flow areas of the tank.
they're not generally aggressive, they can be quite unyielding. A few
species can grow quite large (reaching over a foot in diameter) while
some species stay relatively small (less than 2 inches across). The
larger species include many of the corals commonly referred to as "hairy
mushrooms." All species divide as a method of asexual reproduction.
that these corals will sometimes detach from their rocks and float
away. This could be a sign that they are unhealthy or over crowded.
However, it could also mean that they are not happy with where they are
in the tank and are simply trying to find a more favorable spot. You can
try to glue the coral down, but this can be quite difficult if there
are grains of sand attached to the foot. It's usually wiser or kinder to
just let the coral find the spot it wants. Just make sure that as it
ventures around it doesn't get stuck in an obviously bad place (such as
in the grate of an overflow or powerhead, or at the base of an
incompatible coral). These corals can be fragmented by cutting