Period of isolation, often enforced post-import or purchase of new fish(es) in aquaria, in order to prevent transmission of pathogens or parasites.

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.