Frag Tank
Coral propagation tankDefinition
A frag tank is a separate shallow tank dedicated to coral propagation, typically with a single layer of egg-crate covered in frag plugs.
Practical use
Standard frag tank: 24-48 inches long, 12-15 inches deep, with low-flow + moderate light. Often plumbed into the main display's sump for shared parameters. Frag-and-grow operations sell plugs once corals encrust.
Browse the full glossary for more aquarium terms.