The dimensions of the tank are 84X36X24 (LXWXH). The shark cost me $300.00. The store I bought it at originally wanted $425.00, but they wanted to sell it to recover the space it was taking up so they discouted him. I've only seen two port jacksons in this area(Denver), but I've seen several horn sharks. I don't know if they are more available online, I guess you would just have to surf around.