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Cinnamon Clownfish are a very hardy species that do very well in fish-only aquariums and reef environments. They are very territorial and will vigorously defend their territory from other clownfish and similarly sized fish species. They become more aggressive with size and age, but should be considered more territorial than overly aggressive. When kept in smaller aquariums, this species should be the only clownfish species kept and should be kept with other semi-aggressive fish species. In larger aquariums, this species can be kept with a vast range of other marine fish species. Cinnamon Clownfish will prefer a host anemone, but this is not an absolute requirement. This species is usually seen with bulb tipped anemones (ex. Entacmaea quadricolor) or leathery sea anemones (ex. Heteractus crispa), but may also accept other similar type anemone species. This species will not harm corals or invertebrates, thus is suitable for reef and FOWLR aquariums.