Has anyone here kept Emperor tetras with Discus before? I'm thinking of getting a bunch of them for my 4ft instead of the usual cardinals and rummynose.
Further to this, there seems to be a few different fish that come in under the name of Emperor Tetra. One of them is Nematobrycon palmeri which seems to be the true Emperor and also Inpaichthys kerri which seems to be the Blue Emperor tetra and doesn't have the thread fins of the palmeri.
Would anyone advise one over the other?