Shadow Mosura Shrimp

Caridina logemanni

Also known as Shadow Mosura

Animalia›Arthropoda›Malacostraca›Decapoda›Atyidae

Shadow Mosura Shrimp are a striking freshwater shrimp variety prized for their dark, shadowy coloration and intricate patterning. These are a color morph of Caridina logemanni, known for their peaceful demeanor and algae-grazing behavior. They thrive in established, planted aquariums and are moderately challenging to keep due to their sensitivity to water parameters.

Where it's from

Recorded as introduced in Norway

At a glance

Size: 1.2 in; 3 cm
Min tank: 10 gal; 38 L
Group: 6+
Temp: 72–79°F; 22–26°C
pH: 6.0-7.5
GH: 71–143 ppm; 4–8 dGH
Temperament: Peaceful
Swims: Bottom
Lifespan: 2-3 yrs

Ammonia 0 ppm and nitrate under 20 ppm.

Care

Diet

Shadow Mosura Shrimp are primarily biofilm and algae grazers that benefit from a mature, established tank with plenty of natural food sources. Supplement with high-quality shrimp pellets, algae wafers, and blanched vegetables like spinach and zucchini 2-3 times weekly. Avoid copper-based fertilizers and medications.

Behavior

These shrimp are nocturnal and spend most of their time foraging on substrate and plant surfaces for biofilm and algae. They are social and do best in small groups, displaying minimal aggression toward tank mates. Molting occurs regularly; provide plenty of hiding spots and calcium-rich foods to support healthy shell development.

Breeding

Shadow Mosura Shrimp breed readily in freshwater without brackish larvae stage, making them excellent for home aquariums. Females produce small clutches of 20-30 shrimplets every 4-6 weeks in established tanks. Fry are tiny but will thrive if the tank has abundant biofilm and fine plant matter.

Tank mates

See all 6

Amano Shrimp

Similar size and peaceful; both are algae grazers with compatible water parameters

excellent

Otocinclus

Small, peaceful bottom-dweller; does not prey on shrimp

excellent

Ember Tetra

Tiny, peaceful fish that will not eat adult shrimp; avoid if fry present

good

Dwarf Hairgrass

Provides grazing surface and shelter; shrimp will not damage it

excellent

Java Moss

Dense moss provides biofilm, hiding spots, and breeding grounds

excellent

No state or federal restrictions on record.

Not legal advice, and possibly incomplete or out of date. Rules vary by state and change over time; check with your state wildlife or agriculture agency before buying, keeping or shipping it.

The care information here is written with AI help, so it can contain mistakes. Spot one? Tell us and we'll fix it. Native range: Global Register of Invasive and Introduced Species (CC BY 4.0).