hello all i'm new to the hobby as well as to this site... i have: 2x clownknife, 2x pacus, 2x oscars, 2x pangasius catfish, 3x silver-tipped shark, 4x kenyis, 6x pink-kissing gouramies, 2x chinese algae eaters & 1 common pleco ... how long does it take for them to grow? i see that my pacus have started to grow since when feeding time comes they are very aggressive... thanks...