An Assassin Snail has become a popular freshwater snail to keep. Assassin Snails have a reputation of being able to help keep populations of some other freshwater snails in check. While keeping a small group of Assassin Snails in a tank may reduce the numbers of Trumpet Snails somewhat, Assassin Snails should not be considered the only solution to snail population explosions. Keeping Trumpet Snail populations in check can also be achieved by removing excess uneaten food from substrate by regular vacuuming.
The Cardinal Tetra is a schooling fish, which feels more at ease when kept in a school of at least 5, but a larger group would always be better. Keeping at least 10 or more of them together will also help boost their coloration.
South American river basins do not feature a lot of plants, so there is no need for heavy planting. Instead, provide a lot of open swimming space, as Cardinal Tetras are very active and fast swimmers. As for the water chemistry, they prefer very soft and acidic water with a pH between 4.5-7, and water temperature between 73-81 degrees Fahrenheit.
Amano shrimp (Caridina multidentata) is one of the best and most useful freshwater shrimps for keeping in a tank. This shrimp is irreplaceable in a tank since it can clean it by eating algae. Takashi Amano, a famous aquascapist and designer of so-called “nature aquariums,” was the first to use these shrimps to deal with algae in his planted tanks. After revealing their remarkable ability to eat algae, he ordered several thousands of shrimps from the local seller. Since the 1980-s, aquarists started to call this shrimp “Amano shrimp.”