Maintaining a Nano Aquarium
Smaller volumes of water are inherently less stable than larger volumes, because parameters such as temperature or waste
levels can change more quickly in a small volume.
This means that aquarium maintenance must not be neglected in the smaller water volumes of a nano tank.
Regular water changes are the most important aspect. Weekly water changes of around 25-30% are recommended as a guideline
in most cases.
The smaller volumes involved generally make water changes easier. Replacement water can be stored in a clean bucket or
other container overnight before use. This allows the water to reach room temperature, gases to equilibrate and chlorine
to evaporate (however, it is still wise to use a dechlorinator).
The easiest way to remove water from the tank is by using a small siphon tube, sucking up any visible debris at the same time.
Filter maintenance should be performed when there is any sign of the output slowing. Any filter material that functions
biologically, such as sponge/foam, should be cleaned in water removed from the tank to avoid damaging the filter bacteria.
If filter material is cleaned in hot water or chlorinated tap water, the bacterial population will be damaged.
Other aspects of maintenance, such as algae removal and trimming plants, are less critical, but will keep the aquarium looking
good. Cover glasses, light tubes and reflectors should also be kept clean to maximise the light available to plants, and tubes
should be changed once per year to maintain strong output.