pearl cichlid healthy adult, popular south american cichlid, easy to keep ornamental species for beginner aquarist, led light

geophagus brasiliensis cichlidae cichlid brazil aggressive territorial iporangensis intelligent omnivorous dominant dwelling dangerous colorful smart freshwater fauna swim water clear aqua aquarium petshop animal aquaculture fishkeeping business trade underwater decorative fish tank little instinct habitat overpopulate ecology threat protection ichthyology controlled conditions phlegmatic funny tropical monster male adaptable hobby space glass refraction community