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AQUARIUM ANIMAL
- a bit of general info for the species

Daphnia pulex

As there are 99 species of Daphnia in Denmark, I'm not sure I actually have this on.

Synonyms: No
Vascular names: Water Flea
Family: Daphniidae
Origin: Americas, Europe, Australia
Habitat: Shaded ponds
Water: pH:  5-8      dKH: 1-15
Temperature: 1-32C
Size: ♂: 0,1-0,3 cm  ♀: 0,1-0,3 cm
Gender difference: Females have ovaries on the back - photo above
Reproduction: Cyclical parthenogenesis, both sexual and asexual
Lifespan: 10-30 days or even 100
Litter: Live, 2-20 at a time
Pregnancy: Few days

This arthropod*  is common in aquariums, but as live food. However, they are a prefect inhabitant to Femto aquariums. And they work for it, eating bacteria, fine detritus, and very small algae particles. They have two pairs of antennae, the second of which are enlarged into powerful organs used for swimming. Daphnia pulex was the first crustacean to have its genome sequenced. Its genome contains 31,000 genes 8,000 more than are present in the human genome - more sophisticated!
') An invertebrate animal having an exoskeleton, a segmented body, and paired jointed appendages. Arthropods form the phylum Euarthropoda, which includes insects, arachnids, myriapods, and crustaceans.

INTRO  SPECIES  BUILD  MAINTENANCE  TOOL  PHOTOS  MAIN
 
PICO: 1  4    FEMTO: 1  9