Flowerhornrus.com, you'll learn a lot there..
But to answer a couple questions..
Flowerhorns are VERY territorial.. and most can't be kept in a community tank.. unless it's EXTREMELY big... even then, it'd be tough..
THey are bred easily, but only top 15% of fish turn out to be quality fish.. rest are low/mid grade fish..
They're pretty hardy fish.. and can live in many different temps, water levels, etc.. but best would be 86 degrees F, pH 7.0 - 8.0(recommended 7.5 - 7.8 by a lot of master keepers), originals are not as beautiful as the Flowerhorns of today, but I've been told mine is an older based Blue Dragon Zhen Zhu..
But flowerhornrus.com is a good site to learn a lot about 'em. There are a lot of different strains.. ZZ = Zhen Zhu, one of the more commonly kept strains.. but ZZ branches out into more variations..
Here's a picture of mine...
Hope this helps a little.