The good think is alot of time you can find large tanks on here for sale on here cheep. I got my 210 on here for $500 and I've seen even larger tanks go for even cheeper. Plus theirs alot of people on here that could help you maybe build a wooden tank. A friend of mine made a 600g that looks awesome and cheep as sh*t.
Some fish are just best waiting for, it took me alittle over 3 or4 years befor I got mine. They grow fast too, mine hit 9 inches around 5 to 6 months, and alittle over a foot in a year. There not the fish that will get thire growth distorted being in a small tank, they will just kill them self, no joke. And allot of the info that you seen online on google isn't true, like info from other online petstore. It's the people like use with the axperience with them are the people you need to get the info from.theirs alot of info needed for these guys. I'm happy to help if you would like to message me.