Overview
The Freshwater Mussel (Unio spp.) is a advanced freshwater species known for its brown-black coloration. Filter feeder. Substrate.
Origin & Appearance
Origin: Europe/N. America.
Colors: Brown-Black.
Body Shape: Bivalve (hinged shell). Typical adult dimensions: 10.0 x 5.0 x 8.0.
Sexual Dimorphism: Minimal.
Tank & Water Requirements
| Min Tank Size | 20 gallons |
| Temperature | 50–72°F |
| pH Range | 7–8 |
| Water Hardness (GH) | 5-15 |
| Bioload | low |
| Oxygen Demand | medium |
| Plant Safe | yes |
| Aquarium Position | Substrate |
Behavior & Activity
Nearly sessile; may slowly reposition using muscular foot; buries in substrate; filter feeds from fixed position
Speed: 2/100Aggression: 1/10diurnal
Breeding
Not bred at home; broadcast spawner
Common Diseases
💊 Starvation💊 needs phytoplankton/strong light
Expert Notes
Filter feeder; hard to keep alive long-term