A tank that sits external to your main tank but shares the same water via an overflow or attached to a sump. Refugiums are generally used to isolate certain plants or grow items that need to be isolated such as macro algae.
A separate tank which shares water and filtration with the main aquarium. Used for growing Nitrate reducing Algae, raising live food, and isolating inhabitants from the main tank.
a body of water physically separated from the main tank, but which shares a common circulation and water supply, for the purpose of growing beneficial animals and plants)
a body of water that's physically separated from the main aquarium, but shares a common water supply with it
a handy alternative to med tanks
a nice addition to your aquarium if you plan on growing certain corals or maintaining certain marine conditions
a separate tank used as a refuge for critters that would normally be eaten up by the inhabitants of the tank
a type of sump arrangement, tied in with your main/display unit through a circulating pump to culture foods, add filtration, volume
a type of sump that houses algae and rock and sponge