Glossary: M

MACNA

The Marine Aquarium Conference of North America

Macroalgae

Large plant-like algae commonly found in red, green and brown varieties. One of the most common of these is Caulerpa, which produces large green spheres resembling grapes.

MASNA

Marine Aquarium Societies of North America.

Medusa

Adult stage of most organisms from phylum Cnidaria with the exception of class Anthozoa.

Metal Halide

Metal halide lights are a type of light bulb which burns very white and very bright. They require a special fixture and ballast. They are the closest thing we have to artificial sunlight, and are typically used on reefs and planted tanks.

MH

See Metal Halide

Mini nem

Short form of "mini carpet anemone". Stichodactyla tapetum is the species name.

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