Here are a couple of links that explain the introduction of Peacock Bass to Florida waters (1984 Dade and Broward counties) and it also goes on to give a little insight into the cohabitation of Largemouth and Peacock bass. A couple of specifics that I took from these links:
- Peacock bass are predatorial and are more aggressive than Largemouth. Where a Largemouth will ambush prey, Peacocks actually chase their prey down. This results in many anglers reporting catching 4 or 5 peacocks to every one largemouth.
- Peacocks don't like saltwater, so they will not migrate outside the canals and waterways into which tye were introduced.
- Peacocks will not survive in water temps below 60 degrees fahrenheit
That's enough for now..I don't want to completely spoil the links.. give them a quick read

Explanation of the species and habitat
http://www.floridaconservation.org/Fish ... ml#peacockThis seems to have been written several years ago, but certainly still applies.
http://www.floridaconservation.org/Fish ... 8-pea.html