severum cichlid fish, aggressive dominant male, popular and hardy freshwater fish from amazon river basin in low light fish aqua

acidic adaptable adult aggressive amazon america animal aquarium aquatic aquatrade background basin beauty behaviour biotope blur blurred breeding bright business care cichlid cichlidae clever conditions controlled cute dark decorative design dominant eco ecology efasciatus endangered exotic fauna fish fishkeeping free freshwater habitat hardy heros ichthyology import instinct intelligent light look low male natural nature omnivorous ornamental pet popular protection red river rotkeil severum severus side sociable solimoes south space stripe threat underwater view vulnerable water young