The Tank is 6 foot by 2 by 3, and to answer previous questions, i feed them prawns, whitebait, trout, salmon, and live river shrimp from time to time and obviously the occasional live fish, such as goldfish etc, my plan from the start was to get as many juveniles as i could to grow up and then choose one or two specimens to keep and grow on to full size however as they started to grow i noticed variations between them, and at first i thought i had 6 vittatus and one Goliath however i know believe i have 4 different species in the tank including Vittatus which i believe i have two, one Goliath, one Brevis, and two forskalli, and another which has a different shape mouth alltogether however could be any of the species mentioned, so as you can imagine i dont really want to sell any of them till they get a bit bigger and know for sure what species i have in there, but ideally i would like to keep all of them however as they grow i dnt think that this will be possible!! lol.