I would be getting a baby black aro, no more than 5 or so inches. I raised a silver and did a very good job with him (Raised him from 3 inches) so I'm pretty familiar with aros. Are blacks more sensitive to water quality? The fish would spend at least its first 6 months as the sole resident of a 220 gallon tank. After that, I might add a motoro. The tank will be jump-proofed to absurd proportions. Water changes might be a little sporadic, There might be points where there would be a week and a half between WCs while it is young. The tank has an established biofilter that was supporting a 26.5 inch arowana extremely well. Feedings would be once a day consistently, twice a day while the fish is small.
Will this be ok for a black aro?
Will this be ok for a black aro?