Schooling Fish Question?

[Saltyanimals]

My chromis started as a group of five ended as one. Started killing off smaller of the group first. Took two years…

This!

I've added in 3s, 5s, 7s. Eventually there will be ONE just matter of how long. And this is in a 6' 180G system with plenty of home space to call their own. I have a single one now and about to add another batch of 5. My expectation is that 1-2 will quickly go and that'll leave 3 that'll be okay for awhile until it's not. Cheap, pretty but I can't figure them out. At least they're cheap.

 

[SantaMonica]

In my old 90g I had a school of some type of striped catfish. They were unreal schoolers... bundled together like glue and darting quickly back and forth.

 

[Steve and his Animals]

In my old 90g I had a school of some type of striped catfish. They were unreal schoolers... bundled together like glue and darting quickly back and forth.

Wouldn't be a bad choice if they stayed small/couldn't eat other fish as they age. Striped eel catfish are what they're usually called.