Kingdom — Arthropoda.
Subphylum — Crustacea.
Class — Malacostraca.
Order — Decapoda.
Superfamily — Atyoidea
Family — Atyidae.
Genus Caridina — Caridina.
— Caridina striata [Rintelen & Cai, 2009] — Red Line Bee shrimp. “Red Line Bee shrimp”, “Sulawesi Red Line Stripes Bee shrimp”, “Red Line Yellow Tail Bee shrimp”, “Red Stripes shrimp”, “Dynamite shrimp”. Sulawesi, Indonesia. The species is widely distributed in Lake Towuti and has also been found in Lake Mahalona. It inhabits both shallow coastal areas on small stones and deeper areas (from 3 m) among large boulders. It often lives together with C. profundicola and C. spinata, but separately from C. glaubrechti and C. woltereckae. Size 1.2-1.7 cm.
The coloration is red with characteristic longitudinal white stripes and a small number of white dots. Very bright colors close to marine shrimp. The front legs (first and second pereiopods) are white and clearly visible. Under stress, the coloration remains visible, only slightly fading. Females and males are almost indistinguishable from each other in size, color intensity, or abdomen shape. The wider abdomen of the female becomes narrower after pregnancy.
The water in the aquarium must be clean. The second important condition is water temperature, which needs to be constantly maintained within 28-30°C. This must be taken into account during water changes so that the added water is of no lower temperature. In addition, they are sensitive to sudden light; turning on the aquarium lamp unexpectedly in a dark room can cause them to die from stress. Therefore, in the dark, you must first turn on the room light and only then turn on the lamp above the aquarium.
It is best not to keep other shrimp species in the aquarium with Red Line Bee shrimp. They are very territorial and do not tolerate other similar shrimp near them. Most other smaller shrimp are usually driven out of their burrows if Striata decides to live there. It may require a larger tank with plenty of hiding places when keeping a large group. Stocking density is 1 shrimp per 2 liters of water. Prefers tablets over algae. Suitable only for very experienced aquarists. Reproduction in freshwater is difficult. Juveniles are born as exact copies of adults and are already colored. pH 7.7-8.5.
— Caridina tenuirostris [Woltereck, 1937] — White Orchid Bee shrimp, Miniature Red Line Bee shrimp. “Blue Dot Red Line Bee shrimp”, “Mini Red Line Bee shrimp”, “White Orchid Bee shrimp”. Sulawesi, in Lakes Mahalona and Towuti, Laron and Tominanga rivers. Size 1.2-1.5 cm. Inhabits lakes Towuti, Mahalona, and at the confluence of the Tominanga and Laron rivers into the lakes, mainly on driftwood. Often found together with C. lanceolata.
The coloration is brown or dark coffee with milk, with several transverse white-transparent stripes along the entire length of the body. Clearly visible white dashes are located on the periphery of the abdomen. Specimens with a bluish tint on the stripes can be found. This coloration remains visible under stress, only the color may fade. The coloration resembles C. glaubrechti, but differs in the rostrum and in inhabiting driftwood. Genetically, this species differs from other ancient lake species.
This is the only shrimp that remains visible all day long. In the wild, these animals prefer a secretive lifestyle and settle predominantly on driftwood. When they sense danger, they stop moving and completely blend in with the substrate color. Live plants should be present in the aquarium, but not in large quantities, whereas a large amount of driftwood, small stones, and other hiding places is necessary. Feeding is best done with specialized foods for small exotic crustaceans. Very hardy, easily breeds in a freshwater environment. T 26-28°C, dropping below 24°C can cause their death; pH 7.0-8.0.
— Caridina woltereckae [Cai, Wowor & Choy, 2009] — Harlequin shrimp. “Sulawesi Harlequin shrimp”, “Harlequin shrimp”, “Flag Beauty shrimp”, “Celebes Cola shrimp”, “Celebes Beauty shrimp”, “Сelebes Beauty Bee shrimp”. Lakes Towuti, Malili, on Sulawesi Island in Indonesia. 1.5-2 cm. Harlequin is the smallest of all recently discovered Sulawesi shrimp.
It has a unique red coloration with stripes. This is a mixture of three colors: black, red, and white. The cephalothorax has three dark brown (sometimes reddish) vertical stripes. The first two are usually connected at the top (like the letter n). It has red-brown dashes on a white background. These three colors perfectly complement and contrast with each other. The top of the head is emphasized by a red vertical stripe continuing around the eye. The arrangement of stripes, size, and color are unique to each shrimp.
If you look at this dwarf shrimp from below, small “stripes” on the white thoracic front legs catch the eye. The abdomen on both sides is crossed by a longitudinal white stripe and densely covered with transverse dark brown stripes. The front part of the cephalothorax from below is completely white. The tip of the tail can be colored white or transparent. This coloration remains distinguishable under stress, but may fade slightly. The coloration of both sexes of this shrimp species is completely identical.
C. spongicola can be distinguished from C. woltereckae by its smaller size and shorter rostrum. In C. spongicola, the rostrum extends beyond the scaphocerite. C. woltereckae also has a brighter coloration with a strong violet-red color and thicker white stripes.
Non-aggressive. Difficult to keep. When kept in aquariums, they are very timid, constantly hiding in shadows and various secluded corners. Once the Harlequin gets used to the new conditions, and if no one hunts it in the aquarium, it will increasingly appear in the open and behave much more boldly. Its coloration immediately becomes much brighter and more interesting.
A shoaling species, up to 100 individuals can gather on Cladophora. It is best to feed them at night when the aquarium lights are off, as during the day they mostly stay on plants or hide. They require very clean water! It is recommended to keep them in water with a temperature of at least 25°C. Any temperatures below this mark can be fatal for these shrimp. In addition, the water must have a pH of at least 7.0. Most aquarists keep their Sulawesi shrimp in water with a pH of 8.0.
They reproduce in freshwater. The female carries 10-15 eggs. The eggs are usually dark brown. An adult female produces miniature copies of herself after 20-30 days, only the color is not as saturated. Females brood the eggs until small shrimp hatch from them. Since they are very small, these shrimp should not be housed with fish or aggressive shrimp. pH 7.0-8.5; T 26-29°C.
Description of the genus Neocaridina, Neocaridina heteropoda “Wild”.
Caridina schenkeli, Caridina spongicola. 
