Algae growth in aquariums
Aquariums always contain almost all types of algae. The presence of algae is inevitable, but whether you notice it or not depends on how much the conditions encourage algae growth. One of the main reasons for the growth of algae is always a surplus of phosphorus and nitrogen in the water, which is generally due to the presence of too many fish in relation to the number of plants. It's a good idea to start with a few healthy fish to eat the algae, and a number of plants that grow fast and consume the nutrients present at the bottom of the aquarium. Otocinculus affinis, Crossocheilus siamensis (Epalzeorhynchus) and Ancistrus (Xenocara) are good algae-eating fish; and Hygrophila difformis, Hygrophila polysperma, Ceratophyllum, Sagittaria, Echinodorus bleheri, Ceratopteris and Vallisneria are all good anti-algae plants. Change 25% of the water every two weeks in normal conditions, and change as much as half of the water once a week if algae growth is rampant. Avoid useing a bottom filter, which steals nutrition from plant roots and sends it out again into the water - this encourages algae growth.
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