I have a 30 gallon semi-aggressive tank, which currently has a red tailed shark, and 4 zebra danios. I wanted to add just a few more fish, they seem to have plenty of room and everyone has been getting along for about a year. my lfs suggested adding 4-5 buenos aires tetras. i do not know much about them, other than they are omnivorous, which is fine, i have very few live plants, and they are hardy in regards to water conditions. since they are a wee bit nippy, i think they would stand their own with my shark (who is also just a little nippy) and the danios would be fine because they are pretty speedy. anyone think this would work? or have any experience with these fish? i like to make informed fish-choices, and I want what's best for the entire tank.
thanks for your help!