angelfishes, fancy hi-fin swordtai and dwarf pencilfish

algae and angel angelfish angelfishes animal aquarium art artwork background beautiful black blue brackish bright color crypt design doodle drawing dwarf ecology fancy fish freshwater hellerii hifin illustration ink line marginatus nannostomus nature ocean paint pattern pencilfish platies platy pop pterophyllum pygoplites saltwater scalare sea seamless silhouette sketch small striped style swordtai swordtail symbol tropical variety water white wildlife xiphophorus