Elf fish is one of the common ornamental fish. It is very small, usually only 4-6 cm long, with brown stripes running through the middle of the body, brown above the stripes and yellow below. It is native to South America, usually feeding on algae, is a very good clean fish, but lack of algae, it is easy to die.
Mossy rat's diet is relatively mixed, it is easy to raise, but to ensure that the water is clean, so that it can live. Its mouth is long in the lower part of the head, sucker-shaped, can be attached to rocks, but also eat the bottom of the tank moss and some of the remaining food. This kind of fish generally do not keep in the water grass tank, otherwise it will turn over the water grass.
The black line flying fox is known as the king of algae-eating fish, and it especially likes barbate algae and filamentous algae. Because of its timid nature, it should not be raised alone, otherwise it will hide and not show up. This kind of fish can be mixed with some small fish, it should be noted that it can not be fed too much feed at ordinary times, otherwise it will lead to its picky eating, thus no longer eating algae.
Golden beard is a kind of heteromorphic fish, its temperament is gentle, can be mixed with other fish. Because they prefer to gnaw wood, they need to put a sunken wood in the tank. This kind of fish can eat algae, usually feed to choose artificial feed containing algae, can also feed some brine shrimp and red blood worms.