hey, im new to the forum, i was giving a tank by my nans next door neighbour, only small, 2 foot long, 1 and half foot tall and the width is a foot. i have set it up and put a pleco in to build up the bacteria. i was hoping to breed fish, as i did with my koi. but i was wondering what would be easiest for me to start with? wat breed? ans could any one please tell me how much water my tank holds? thank you.