Period of isolation, often enforced post-import or purchase of new fish(es) in aquaria, in order to prevent transmission of pathogens or parasites.
Glossary: quarantine tank
An aquarium set up and maintained for purposes of quarantine. May also be used to isolate diseased, parasite-infested or otherwise unwell individuals, in which case it may be referred to as a hospital tank.
Having five points or cusps. Used most commonly in reference to teeth.