Harlequin Shrimp (Caridina Woltereckae)

Harlequin Shrimp

Harlequin Shrimp has a stunning pattern and coloration which makes it popular in the shrimp keeping hobby. It resembles Caridina Spongicola; however, it is not a “sponge feeder” and is marginally bigger than its counterpart. It can be kept in community tanks with non-aggressive small fish. It is not shy under proper tank conditions and does not mind the company of other community tank inhabitants.

Water Parameters:

Temperature: 26-30°C
pH: 7,5 – 8,5
Hardness: 6-8 dGH

Like all Sulawesi Shrimps, it is highly suggested to keep the Harlequin Shrimp at a temperature of no less than 26°C. Anything lower may be fatal for this species. It is additionally suggested to keep this species in a tank with hard water and a pH of no less than 7.0. Most specialists prefer to set their Sulawesi tanks with a pH of 8.0.

Harlequin Shrimp

Harlequin Shrimp can be very shy in some situations and It may hide in the shadows and some cases not show up regularly. This may mean that the Harlequin Shrimp is not comfortable in its new aquarium. If it is observed that Harlequin Shrimps are hiding most of the time, then it is an indication that they require more time to get settled or that the tank parameters are not comfortable for them and should be checked and adjusted. The most important parameters to be checked are pH, KH, GH, water temperature and NO3 levels. These parameters are vital for this species. When this species progresses toward becoming adjusted and does not fear predators it will turn out in plain sight. (predator or big fish are not suggested to keep together with any shrimp species).

Feeding:

This shrimp feed on occasional algae and other invert foods. It prefers to eat at night as it mostly hangs out on the plants or substrate during the daytime. Harlequin Shrimp likes to be in the shade covered by plants. It prefers eating when the lights are out as it feels more comfortable.
Feeding is best done once every day. Just feed enough that the shrimp can complete a maximum of 2-3 hours. It is bad to feed copiously and have food sitting for a long time. Overfeeding is a known reason for death and can also damage the water quality. Keep in mind that shrimps are scavengers and they will eat whatever they find and not used to a steady nourishment routine. Not feeding for maybe a couple of days is fine and won’t hurt them by any means and can also help to keep the water cleaner.

Breeding:

Breeding is done in completely fresh water no salty or bitter water is required at all since there is no larval stage for the shrimp babies. The grown-up females convey the eggs until the point of hatching, producing miniature shrimps. The females can carry about 10-15 eggs and the incubation takes roughly 20-30 days for the eggs to hatch depending on water temperature. The infants quickly display the same colors and patterns as the adults, just not as intense.

Image Source: https://www.shrimpydaddy.com

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