i am new to all this and i just found out that you can have real sharks and not these freshwater ones petco sells. i live in wisconsin so its hard to find these things out. well to start i have a 55g tank i know i would have to get something bigger. but i just want a run down of what i need and how i should go about doing this? for example raise him in the 55g and purchase a 150 or somthing later ? please help i am so excited to start working on this. i have been reading all day! and i just cant wait so please any info will help! i dont know which shark i would get either thought about the black banded or the bamboo. thanks!