ocellaris clownfish, healthy and active animal swim in strong current in nano reef marine aquarium, popular, hard to keep pet

aggregation amphiprion anemone aquaculture aquascape aquatic biocenosis biodiversity biology captive clownfish colorful conditions controlled copy coral decorative depth ecosystem environment exotic explore false fauna field fish flow focus free hermaphrodite isolated lateral macro marine nemo ocean ocellaris percula pet pico pomacentridae protandrous reef responsibility sale salt saltwater selective shallow shop space symbiotic tank tropical underwater vulnerable widespread wildlife