i kept a whitespotted bamboo shark for about 8 months. I bought him as a small tank born and raised baby about 7 inches long. I have a 75g tank which was fine for him at the time i bought him and even at the time that i got rid of him. he was about 10 inches when i sold him back to the fish store where i bought him. i never had any problems with him, but i also read about 3 books and researched on the internet constantly. Here is some of the stuff i learned about keeping sharks in an aquarium. First off that filter isn't gonna get the job done. A wet dry is a must, they produce way to much waste and are terribly sloppy eaters. A large varied diet is a must along with vitamin supplements. I fed lancefish, krill, and a specially formulated shark food, supplemented with HUFA and garlic elixers. Also like someone else said, fine sand is a must and there should be no tank decorations. They should be provided with as much ground surface area as possible since they r bottom dwelling sharks. Also don't bother with inverts because they become expensive snakcs for the shark. And i wouldnt recommend any other tank mates, small passive fish will become snacks also and larger or more aggressive fish will pick at the skark causing stress and other possible injuries or death. And i 180g isn't going to be large enough for a full grown Banded Shark.
The one i had was great and i liked having him. I never had any problems, i just got bored with having a tank that i couldn't do anything with because the shark doesn't go well with any other sea creatures. I am getting into rare angelfish and i find it much more interesting and they look much nicer.
PS. I would also look into a protein skimmer and UV
sterilizer if i were u. They r gonna cost an arm and a leg for a tank big enough to house that shark. They r pretty sensative when it comes to water quality so u gotta have everything.