I currently have a 6" black arowana which I love, BUT theres a 5" NGT at a LFS which I also like. The only problem is the NGT is like $120 something dollars. I know I can do an even trade for the NGT by trading in the black arowana. What should I do? What would you do? I have a 250 and the tankmates are just some marble motoros. I know everyone is gonna say keep the black arowana and get the NGT, but cash is tight and this might be my only chance to ever get a NGT.