In recent years, the exotic freshwater aquarium shrimp has been added to the aquaria hobby. Shrimp has been kept in many tanks in some parts of the world for many years until creative hobbyists found them to be great in home aquarium. Freshwater aquarium fish are being kept and bred for their assorted colors and their non-aggressive behavior. They are now also being sold in pet shops like any other traditional aquatic pets.
Takashi Amano, a Japanese aquarist, introduced a shrimp variety known as the Yamato Numa Ebi in the 1980’s. Also known as the “Japanese marsh shrimp” and “Amano shrimp”, they are more colorful than other freshwater aquarium shrimp. Their color combinations are light brown to reddish brown. They can get as large as 2 inches when fully grown and prefer to eat soft algae. They are sensitive to high levels of ammonia but can tolerate high alkalinity. Coming from a temperate region, they only thrive in waters temperatures ranging from 30 C and below. When algae is not available , they will eat fish food and some other things in the absence of their normal food supply.
Another popular variety is the Cherry shrimp which originated from Taiwan. The most sought after variation of this type is the Red Cherry shrimp which was bred in Germany. They were brought to the Unite States in the 1990’s. The Red Cherry shrimp have care requirements almost the same with the Amano shrimp. They are the same in size and eating habits. Known in the scientific circles as Neocaridina denticulata sinensis, Cherry shrimp are non-aggressive. They are very active and spend most of the time grazing on plant leaves and the tanks bottom for algae.
A known and somewhat popular kind is the Bee shrimps who have also become known as Bumble Bee shrimp. These small freshwater shrimp came from Hong Kong. They grow slowly and only grow to 1 inch in adulthood. Unlike the Amano shrimp and Cherry shrimp, they are not good algae eaters. They consume vegetable matter and soft mosses. They thrive well in waters ranging from 22 to 25C, and a water ph of 7.5 and the water should be free of any ammonia. Bumble Bee shrimp can reproduce 12 times in a year if their habitat is properly maintained. They reach adulthood in half a year and can live to almost one and a half years.
There are large, long-arm shrimp that are preferred by some aquarists but they are known to be aggressive. With their chelipeds they can catch small fish and other small pets in within the tank. The Indian whisker shrimp are one of these species. They also require bigger tanks compared to their smaller counterparts. They must be isolated from smaller shrimp and fish because they may cause disruptions in the habitat.
In caring for freshwater aquarium shrimp, it must be considered that with their size, isolating them would be a good idea. They must be kept in a separate tank because small shrimp are at risk of being eaten by freshwater fish. Avoiding ammonia is also a main consideration and it can be done by selecting a 10-gallon tank. A smaller tank can not give the water quality the shrimp need. They are more sensitive than freshwater fish to water conditions. They can be easily killed by accumulated amounts of ammonia.
For biological filtration, an air-driven sponge filter is one of the better options. Cherry shrimp and a few others like the fine grains of silica sand and the like, as the substrate for the bottomm of their fish tank home. Java moss could be a great addition to the tank. It has been observed that shrimp are more active and productive having Java moss because it does not drastically compete with them in nutrients. Pellets and flakes are good for feeding shrimp but the shrimp will do better with other foods more to their liking. It is a better to give them the amount they can consume in a few minutes. Putting excess food in the tank can affect water quality and may endanger the shrimp.
Water quality must be monitored constantly because the slightest changes in its condition have an immediate adverse effect on the shrimp. The water temperature must be maintained at 25C and a maximum of 30C. Always use a dechlorinator and ammonia neutralizer to reduce the levels of chlorine and ammonia in the tank, and keep them really low to prevent any harm to your shrimp. Toxins must be eliminated from the aquarium on the weekly basis to protect the live shrimp in the tank and should be done on a weekly schedule and in stages of around 30 percent of the water per water change.
The health of the shrimp can be judged with their behavior in the water. They are healthy if they constantly move and look for food. They never hold still unless they drop their shell in the course of growing. As their new shell hardens in about two days, they stay hidden because at this condition they are vulnerable to predators especially in a community tank. Maintaining the parameters of their habitat will ensure their health and longer life span. New and improved ways of caring for them are being discovered as more people appreciate them as part of this hobby.
The market for freshwater aquarium shrimp is slowly gaining ground. The west of the Americas are now seeing the bauty in these pets and getting them for their home aquariums and well as some office fish tanks. The Japanese and other people in the Orient have been doing it for many years now. Keeping shrimp is an old practice rediscovered as a hobby. It took a second look at the shrimp not just as an edible creature, but a living decoration that helped us realize its beauty and vitality.