Decoration in Bichir tank??

[AbrahamKing0]

So I currently have this kind of cave thing that the fish can go through it but I was wondering is there something better I can put in the tank??? Something not too big so they can have enough space to swim??

 

[beau1990]

Driftwood

 

[Joshuakahan]

So I currently have this kind of cave thing that the fish can go through it but I was wondering is there something better I can put in the tank??? Something not too big so they can have enough space to swim??

I have a couple medium sized rocks with a piece of driftwood between them in my bichir tank. The rocks are not very tall and the bichirs kind of crawl over them almost like a snake