Tetra stocking question

[ddp_58]

Currently I have 4 Glofish tetras and one white skirt tetra. There is some territorial behavior between most of the fish probably due to a small school. And I was thinking of getting more fish. Can I get some black skirt tetras or do I have to get the same species?

 

[Aiken Drum]

Your glofish tetras are GM black skirt tetras and black skirt and white skirt tetras are the same species. So adding some black skirt tetras is just adding another varient of the same species you already have, so it should be fine and should help spread out any aggressive behaviour you are seeing in your tank.

Please note that every tank and every individual fish is different. Some fish are just jerks no matter what you do.