Can you suggest some primitive looking aquarium fish?

Question

That can live in an aquarium? There is already a snake head in there (sengal bichr..?) He is still small, only about 5 inches but I believe he will be about a foot when full grown. The tank (he's in a smaller one for now) is a long 130gal with no other occupants.

Answer 1

a black moor is a lot of fun and look good and thy can be big but you can get them smol.

Answer 2

There are plenty of primitive looking aquarium fish, like blind cave fish and plecos and dragon gobies, but none that could survive for long with a snakehead fish.  Snakeheads grow very large and will eat any other fish you put in with them.  They are extremely aggressive fish and must be kept alone in a tank.  I suggest you don't put any fish in that tank that you don't want to be lunch for your snakehead.  And make sure you have a good tight lid on that tank or your snakehead may jump out and go for a walk across your floor.