They grow relatively fast. Red Bellied Pacus would need a several hundred gallon tank for four (the bigger the better).basketball45;3279890; said:how fast do pacu grow and what would be the minimum tank size for 3 or 4 ???
brcacti;3860803; said:mine went from 2 inches to a foot in maybe 6 months or less, he is already too big for my 300 gallon aquarium cause they are sort of like a bull in a china cabinet, they are not really gracefull. Growth rate extremely fast
What about a 300 gallon pond? I think dimensions matter more than gallons. 5 feet of width is better than 12" or 18".see, another person with a several hundred gallon tank that says its still too small, i learned the same thing keeping mine in a 250g. the bull in a china shop analogy is spot on, absolutely perfect!
maybe more people will realize this, and stop recomending that pacu can be kept in a 2-300 gallon tank with no issue.