Tetra Compatability

[Jen]

I just picked up some tiny blue tetras, which I believe do grow to 2 inches, but at the moment are barely 1/2 inch.

In a few weeks I hope to add some congo tetras, which are considerably larger. They are already 2 inches in the store.

Should I have any issues with these two varities?

Thanks.

 

[Somethings Fishy Here]

I think the best thing to do would be to take a good look at how big the congo tetras mouths are at the moment, and more importantly if the blue tetras are big enough to fit into the congo tetras mouths. I'm guessing that the congos won't be able to fit a fish that is 1/2" into their mouths, but if you want to play it safe I would just wait for the blue tetras get a little bigger.