Are Pacu's able to defend themselves against agressive cichlids and sharks?

[Sym]

i'll have to disagree there.. 300 still wouldnt be enough. i think that 1000 would be minimum for ONE, and 10k minimum for a school.

either way, not generally feasible.

Well I wish I was a person of unlimited means Id love to have a 1000G tank! Would be something to look at huh?