Gymnogeophagus Tankmates?

[peathenster]

Pool filter sand for me.... lighter in color and not as fine as play sand.

 

[dogofwar]

It's not a Buenos Aires but an Astynax or a Bryconamericanus sp.

the second pic looks just like a Buenos Aires Tetra and I'm about 95% sure that it is. Also Sean as you can see that get a bit bigger then most other Tetras.

 

[HiImSean]

i prefer pool sand. i do like how play sand has some different sizes but it is just too fine. PFS sinks quickly when disturbed and isn't easily sucked up by a siphon when cleaning or filter intake