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December 7, 2012
Algal blooms, bacterial bloom, green water, Infusorienblüte, mechanical water turbidity, turbid water, water turbidity
by Ulli Bauer
Cloudy water in the aquarium can an aquarist who has not yet addressed the matter, quite frightening.
By and large, can be divided such turbidity in three categories:
In a newly established aquarium with not very clean washed gravel or sand can cause a clouding When adding water. Although in a current pool of ground was churned up because, for example a plant has been excavated, it can lead to such turbidity. Also, some water conditioner (such as Easy Life fluid filter medium) turbid after the addition for some time the basin.
If the filter of this haze does not after one or two days at the latest is on its own Lord, you can try it with a layer of filter floss or Filtervließ. Turbidity caused by suspended is always mechanically removed.
An algae bloom can be seen at the greenish-turbid water. Unlike the dreaded algal blooms in lakes or in the sea, the algae are in the aquarium usually not poisonous. As long as they get enough light, they produce even oxygen.
If an algal bloom so normally there is no need to panic. If this is caused mainly by the sun, the water is usually clear by itself again sometime. Thus an algal bloom can occur, but enough nutrients must be dissolved in the water. So get a precaution feed less and thoroughly see if dead animals, uneaten food or anything else polluting the water. Additional water changes are only useful if no new nutrients come into the aquarium again by the changing water.
Some tap water contains a lot of nitrate that is already relatively and thus one would fertilize algae only addition. A complete black-out of the aquarium leaves die off the algae, but usually it's better to just "bloom" to let the floating algae. That they consume the nutrients in the water and then eventually disappear on its own. The algae die slowly, or become inactive and sink to the bottom, where they are eaten by the aquarium inhabitants.
In unfiltered aquariums with me water fleas (Daphnia magna or D. pulex for example) have proven a minifilter. The also eat very much like floating algae and green water can get relatively quickly clear.----
I myself have done it. Daphnia eat the water is clear.
The small (D. pulex) and the large (D. magna; size 1/4 inch).
The Daphnia are small but immediately eaten by the fish.
Therefore it is better to take large.
The water should not be too new here, otherwise the daphnia die too fast.
Daphnien ? Wikipedia