red-bellied piranha, healthy adult of wild fish species with dangerous sharp teeths from amazon river basin in planted aquascape

active adult aggressive amazon america animal aqua aquaculture aquarist aquascape background basin big bloody blur blurred bright business careful clear commercial conditions controlled curious danger dangerous decorative dof ecology enduring experienced fauna fish fishkeeping free freshwater greedy grey habitat healthy hobby ichthyology instinct macro mysterious nattereri nature neotropical nervous ornamental parana piranha planted popular protection pygocentrus redbellied river schooling shallow sharp solimoes south space species specimen swim tank teeths terrific threat trade understanding underwater water wild