Fin Nippers?

[escamosa]

The aggression issues were likely because of the lack of a proper sized school. If you added more there would have been a change in behavior

Totally agree. I had Serpaes in a school of 10 and had no problems with them at all. The same goes for Black Skirts and Buenos Aires.

It's definitely "strength in numbers" when it comes to Tetras. They feel nervous and threatened in small numbers, but put them in a decent sized school and they're so much more relaxed.

And I think a nice school of at least 6 Rummy Nose Tetra would look nice with your guppies! Add more to that school if you tank can hold more.

[DeadSulphurhead]

And I think a nice school of at least 6 Rummy Nose Tetra

6 isn't a school, nevermind a nice school lol I do like the sig though! I'd say grab 20+ Tinwini danios. Very tight schoolers, back and forth all day, and stay around .5", so it has a very nice schooling wave effect with enough of them.

[escamosa]

6 isn't a school, nevermind a nice school lol I do like the sig though! I'd say grab 20+ Tinwini danios. Very tight schoolers, back and forth all day, and stay around .5", so it has a very nice schooling wave effect with enough of them.

Well for most people 6 isn't a good sized school. But for starters, at least 6 will stop the fish from going to crazy when they are in a small number. And I did say to add to that number if possible!

[Lady10Godiva]

I really like my serpae tetras. They have a school of 14 within a community and we havent had any nipping problems. They do get a little wild when I feed the shrimp pellets though. They really like them.