The other day in Wal-Mart I decided to take a look at the fish. I came across some black khuli loches being sold in the same type of containers that they would normally sell a betta in. I felt bad for the guys in a way and I was thinking about getting one (thought they were pretty neat, too

)
I just wanted to know If I could somehow manage to sueeze one of these guys into my 5 gallon with 4 neon tetras. I know, it's tight, but could I do it if I kept up on water changes? (Like a change every week)
Thanks for any help!
-matt