recommendation

1. Brachyplatystoma filamentosum 2. Brachyplatystoma juruense 3. Brachyplatystoma rousseauxii Which one of these should I get? Already have fila, was thinking dorado but slow growth on the guy, afraid of him being eaten. Saw a juruense in one of the lfs here, quite skinny, probably 16". Wanna...