I sold my 13" melanura for $20 because I thought he was too big for the 6' 150g. He went to a better home and a 300g. And I plan on upgrading. This 150g is getting old, and want to replace it. A LFS near me has 220g tank, stand and lids on sale at times for only $900-$1000. That tank will be dedicated to the little guys, like thorichthys and a few others.