options for a 75 gal

[Diogenes]

if you want something that will fill out that tank get a serrsalmus of some sort. If you had a wolf tetra before, then I doubt you're going be very enthused about keeping a pristobrycon, and as other members already mentioned, it might be on the small side for a group of pygocentrus. That is if your set on Piranhas. Any of the serras except maybe a huge rhom should be comfy in the tank.

 

[HarleyK]

Thanks, D. Just to clarify: Serra would mean single-specimen-tank, right?

 

[Diogenes]

Thanks, D. Just to clarify: Serra would mean single-specimen-tank, right?

yeah all serras are solo. the one exception being geryi. I don't know much about geryi cohabs. I wonder if you could just keep like 2 or 3 geryi or if you needed an actual shoal.... hmmm

geryis are quite striking. They're really light colored almost like brushed aluminum, and they have a large violet racing stripe running from the dorsal fin down their face to the tip of their snout. Really pretty fish....