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Betta fish can exhibit unusual sleep behaviors, often resulting in new betta owners assuming that their betta fish has died. In an aquarium, betta fish sleep anywhere in the tank they feel comfortable, including at the bottom on the substrate, floating at the mid-level, or at the surface.
Lymnaea stagnalis snails can be easily be kept in a freshwater aquarium at room temperature, and fed with various sorts of vegetables, salad, cabbage, fallen maple or oak leaves, cucumber slices and dandelion leaves. Fish food will also be eaten, as well as aquarium pests like algae, the Hydra viridissima polyp, and the eggs of other water snails.
All Betta species are small fishes, but they vary considerably in size, ranging from under 2.5 cm (1 in) total length in B. chanoides to 14 cm (5.5 in) in the Akar betta (B. akarensis). [1] Bettas are anabantoids, which means they can breathe atmospheric air using a unique organ called the labyrinth.
Male individuals of Betta smaragdina will build a bubble nest before breeding. The temperature at which breeding typically occurs is 25.6 to 26.7 °C (78.1 to 80.1 °F). Males and females can live together and the male and female should already live together for breedi
The giant betta (Betta anabatoides) is a species of freshwater ray-finned fish in the subfamily Macropodusinae, part of the gourami family. [2] It is endemic to South Kalimanatan, Katingan, and Sampit in Indonesian Borneo. It is found in a variety of freshwater habitats and is a paternal mouthbrooder.
Aquatic macroinvertebrates are insects in their nymph and larval stages, snails, worms, crayfish, and clams that spend at least part of their lives in water. These insects play a large role in freshwater ecosystems by recycling nutrients as well as providing food to higher trophic levels.
Once in the tank, it becomes a non-harmful pest. Although Physella acuta can be annoying and reproduce quickly compared to other snails, they can actually be beneficial for your aquarium. They clean algae efficiently due to their speed and reproductive rate, and they help break down old food and feces, ensuring a healthier tank environment.
Some gastropods, for example the freshwater apple snails (family Ampullariidae) [7] and marine species of genus Strombus [8] can completely regenerate their eyes. The gastropods in both of these families have lens eyes. Morphological sequence of different types of multicellular eyes exemplified by gastropod eyes: [9]