One of the first things that a salt water fish aquarium owner must consider before they're ready to take on any fish is the aquarium filter. Choosing the right filter for a groups of salt water fish might be more difficult than one would imagine, too - factors such as cost, adaptability, efficiency, and ease of maintenance must be considered. Salt water fish species require a carefully planned environment that mimics the tropical waters that they were meant to live in. The right filter is crucial in the creation of this prefect oceanic environment.
As one might assume, smaller filters can easily get blocked up in a salt water fish aquarium, with materials such as food, detritus and other solid material. Without enough water flow, the salt water fish species may suffer. More efficient filters may also clog more easily, usually with carbon and sand. Salt water fish experts recommend running the tank water through a quality mechanic filter before it goes through the biological filter to reduce material maintenance.
Every salt water fish aquarium owner must do some maintenance on their tank filter, though. Inevitably, regardless of the quality of the filter material, it will need to be cleaned to dislodge the bacteria in the tank and any other foreign material. It is important for the salt water fish to have a clean and pure environment, or at least as clean as the depths of the ocean. This will not only remove bacteria temporarily, but it will also increase the salt water fish aquarium filter's ability to change ammonia to beneficial nitrates.
Salt water fish species do need a small amount of bacteria, though, or they will not be in an environment that completely mimics their natural ecosystem. Bacteria should never be completely removed from a salt water fish aquarium by its filter, so cleaning should be a two step process.