Hi guys. Now that I'm totally addicted to salt water tanks, I'm thinking about upgrading..go figure! Right now I have a 29g biocube and all is well. I'm looking to get a bigger tank for my living room. I want to have a hippo and a yellow tang in that one plus a little more of course!! I was thinking about a 75 or 90g...what do you think? Where would be the best place/deal to get such tank. I live in Austin, Texas.