Is It Normal That My Zebra Danios and Rummy nose Tetra School together?

[Lt.]

They both swim.around together in a fairly tight group all the time. They don't like, intermix, as in a distinct single school, but more like 2 barely distinguishable schools that are so close.

 

[calfishguy]

Yeah it is normal. However they might be schooling this tightly because they don't feel safe. What are the tank mates.

 

[Lt.]

3 zebras danio, 1 leopard danio (lfs lady gave me him with 3 zebras, instead of the requested 4 zebras) 7 rummy noses, 3 bronze, 1 peppered Cory, and 20 or so ghost shrimp. Oh, and 2 fair sized mystery snails. So as far as I can tell, I'm only like 1/2-2/3 stocked with peaceful fish.

 

[calfishguy]

They are most likely doing it because they are similar in shape then.

 

[Wiggles24]

I have a gambusia minnow that follows my Molly fry everywhere lol they look the closest to him

 

[Lt.]

Ok, just wanted to make sure its normal behavior