Siamese fighting fish (Betta splendens) 'Half Moon Koi' on black background in aquarium

betta splendens freshwater aquarium adult male alone profile shot overview underwater shot colorful siamese fighting fish betta splendens betta tropical freshwater fish aquarium fish freshwater aquarium fish black background nobody freshwater aquariums adults males single lonely only solo one lone profile sights profile sight profile shots profile view profile views side view overviews global sight global sights full length subaquatic photos subaquatic sights seen under the water photos under the water underwater shots subaquatic image underwater view submarine images submarine sights submarine sight submarine photos submarine photo underwater views submarine photographies submarine photography underwater underwaterphoto underwaterpicture underwaterphotography underwaterphotographies underwaterphotos underwaterpictures colourful rudy colorfully colored siamese fighting fishes betta splendens tropical freshwater fishes aquarium fishes freshwater aquarium fishes black backgrounds with nobody aquarium captive animal fauna use natural resources use stage of development individual enumeration shot colour fighting fish betta sp actinopterygii osteichthyes fish animal wild animal macropodusinae osphronemidae perciformes teleostei actinopterygii osteichthya pisces vertebrata chordata deuterostomia coelomata bilateria metazoa opisthokonta eukaryota freshwater fish fishes particularity species particularity species domestic fish domestic animal