european bitterling, young specimen of wide-spread dwarf cyprinidae species in spawning colors, freshwater temperate biotope

adaptable adult amarus animal aqua aquadesign aquarium aquatic background beauty biotic biotope bitterling blur breeding captive careful caught clear coldwater coloration colors conditions controlled cyprinidae decorative dwarf easy ecology elegant endangered endemic eurasian european exotic fauna fish fishkeeping free freshwater habitat hobby keep local macro mature nano natural nature ornamental protection rhodeus river small space spawning species specimen tank temperate threat underwater water widespread wild wilderness yellow young