Siganus
The largest rabbitfish grows to about 53 cm (21 in), but most species only reach between 25 and 35 cm (9.8 and 14 in). All have large dark eyes and small, somewhat rabbit-like mouths which gives them their name. Most species have either bright colors or a complex pattern.Another unusual feature among rabbitfishes is their pelvic fins, which are formed from two spines, with 3 soft rays between them. The dorsal fin bears 13 spines with 10 rays behind, while the anal fin has 7 spines and 9 rays behind; the fin spines are equipped with well-developed venom glands. All rabbitfish are diurnal, some live in school, while others live more solitary lives among the corals. They are herbivorous, feeding on benthic algae in the wild. They are pelagic spawners. Many are fished for food, and the more colorful species—especially the foxfish – are often kept in aquaria.In aquaria, they eat a variety of fresh vegetables and algae. Care must be taken during aquarium maintenance and cleaning, as rabbitfishes are often easily frightened and will use their venomous spines in defense. Their venom is not life-threatening to adult humans, but causes severe pain.
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