stone moroko or topmouth gudgeon and juvenile common roach, omnivore freshwater fishes in planted biotope aquarium, endemic

adaptable adult animal aqua aquadesign aquarium aquatic asia asian behaviour biotic biotope captive clear closeup common conditions controlled curious cyprinidae dangerous decorative design destructive ecology endemic european fauna fish fishes fishkeeping freshwater gravel gudgeon harmful highly invasion invasive juvenile local moroko nano natural nature omnivore omnivorous parva pet planted predator pseudorasbora river roach rutilus sand search species stone swim tank threat topmouth underwater unusual water weed widespread wild wildlife