So I just stocked my 20 gallon long with 7 endlers and 10 pseudomugil luminatus. Before I put 6 endlers in from my other tank, I put in one endler that arrived by mail with the dwarf rainbowfish today. Once I added the little guy, he began shoaling with the rainbowfish. He was faster and more darty which seemed to spook him so he slowed his pace to try and fit in. Well I just added my other 6 endlers and now it seems like one very confused group shoal of dwarf rainbowfish and different strains of endlers. The energy of the endlers also seems to be exciting or freaking out the dwarf rainbowfish. I know everyone is stressed and this is a new environment so it's likely things will change once they calm down, but are the two group sgoing to separate or do they really think they're the same kind of fish?