Microscopic protozoa developing on organic matters decaying in water; They can be cultivated, for example in an "infusion" of cooked salad. They can be very varied (in particular in size) depending on the origin of culture water and the organic matter used. They are imperative food for fry of certain small species.
Infusories are very small living organisms that naturally populate aquatic circles. They are part of the plankts and are very useful in aquariums, as they constitute a food source for fish and invertebrates.
Infusories are mainly nourished by particles suspended in water, such as bacteria, algae, etc. They are also able to reproduce quickly, making it an abundant source of food for fish and invertebrates.
There are many species of infusories, but the most common in aquariums are ciliates, rotifers and nematodes. Ciliates are small unicellular organisms that move thanks to eyelashes (kinds of small hair) on their surface. Rootres are multicellular organisms that move by turning on themselves thanks to a eyelash wheel on their heads. Nematodes are microscopic worms that move by wearing themselves.
It is easy to cultivate infusories in an aquarium, but you must first make sure that the environment is conducive to their development. For this, it is important to maintain a good biological balance in the aquarium and to ensure that water is well filtered and oxygenated.
To cultivate infuses, it is generally enough to fill a small container with water from the aquarium and let decant for a few days. Infusories will appear naturally and can be added to the aquarium once they have reached sufficient size.
It is important to note that infusories are not a full food source for fish and invertebrates and that it is therefore necessary to complete them with other foods. However, they can be very useful for feeding young fish and fry, who need very fine food particles.
In summary, infusities are small living organisms that naturally populate aquatic environments and which are very useful in aquariums as a food source for fish and invertebrates. They mainly feed on suspended particles in water and can be easily cultivated in an aquarium from water from the aquarium. However, however, they are not a full food source and must be completed with other foods. They can be particularly useful for feeding young fish and fry, who need very fine food particles. Infusories are also beneficial for the biological balance of the aquarium by feeding on bacteria and other unwanted particles. Finally, they can be used as indicators of the water quality of the aquarium: indeed, if the infuses do not develop well, this can be the sign of a problem in terms of water quality .