Brackish-water aquarium
A brackish-water aquarium is an
Aquarium maintenance
Brackish water species can be kept mainly the same as standard freshwater aquaria, but a hydrometer is used to check the salinity of the water. Certain kinds of brackish water fish need to have their salinity increased slightly every six months. The tank sizes can vary widely depending on the needs of the particular species, and the temperature is usually in the tropical range of 76-82 °F. The substrate can vary from sand to gravel, but many aquarists choose crushed coral or aragonite sand, both of which help raise the hardness and pH to an acceptable level. Many brackish water fish, as any fish, can jump out of the tank, so it must be covered. Some brackish water species come from estuaries. These should have a slow moving current and some hiding places in their aquarium. Some come from larger rivers. These should have plants around the perimeter of the aquarium with some large rocks to rest on. Others come from mangrove swamps. These should have a few mangrove plants, and some species should have a beach to climb out on. Some freshwater species (and the blacktip shark, a marine species) are hardy enough or survive better in brackish water, such as Polypterus bichir, certain loaches, Danio rerio, all kinds of mollies but especially the Yucatán molly, and some gobies. All can tolerate the same amount of salt in aquaria, but should be acclimated slowly.
See also
- Aquarium
- Brackish water
- Fishkeeping
- List of brackish aquarium fish species
- List of brackish aquarium invertebrate species
External links
- Aquariacentral Brackish Water Forum FAQ
- Brackish Water Fishes
- Estuarine Aquarium Keeping, Chesapeake Bay National Estuarine Research Reserve
Further reading
- Frank Schäfer (2005). Brackish-Water Fishes. Aqualog. ISBN 3-936027-81-1(German)
- ISBN 0-7938-0564-3