I currently have 5 red eyed tetras. I would love to get some rummy nose tetras, but only have room for a couple. Would the rummy nose school with the red eyes? I don't want to stress them out by only having a couple. Thanks!
I find that 1 of my rummy nose tetras hangs out with some silver tips but the others will only hang out as a group or else they hide int he plants all day. I wouldn't add more than 2 groups of tetras to the 20 gallon tank as there really isn't room for that many schools, stick to 2 groups and get a full 5 rummy or a full 5 cardinal.