well i recently have bought fish only a few weeks old.. and I think buying young and watching them grow is a great feeling. love seeing them get big before your eyes.
^----I agree with the above watching fish you really like grow up is an awesome feeling, a sense of accomplishment. How bout some Jack Dempseys in that 125
i have four convicts 3 female and 1 male. they havent bred yet they are in a 220gal community with some malawis an rd a jag and a few oddballs. my water paramiters are near perfect aswell exept my ph is 6.6 lol