background catfish mustachioed muzzles

angling animal asia background bangkok batrachus breeding carp catfish ceremonial clarias farming feed fish fishculture fishery fishing flannel freshwater glanis lake mekong mouth muddy mustachioed muzzles nature oxygenpoor piscatology pisciculture pond pondfish pondpisciculture ponds rearing river sheatfish siamese silurus southeast surface trophy walking water wildlife