Well it's a pacu. If it's a red bellied your gona need a giant tank. *If you want to house one of these for life you’re going to need an enormous tank measuring at least 120″ x 36″ x 36 (300cm x 90cm x 90cm) – 2550 litres. That's from seriously fish.com. This is a using from a aquarium but it shows how big they can get.
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