tetras aquarium fish glyph icon

tetras aquarium fish vector icon glyph sign symbol black monochrome illustration tropical animal angelfish rainbowfish danios gourami cory catfish exotic decorative underwater life discus killifish ram cichlids african clown loaches otocinclus betta bristlenose pleco platy rasbora guppy swordtail molly siamese algae eater nature ocean water wildlife ecosystem aquatic marine