I’m a little bit in love with the pencils, the way they hover and hunt is super cute - mine have been spawning too which is lovely to see. I have 14 marginatus (unknowingly I brought 7 Suriname locale and 7 Amazonian locale but they all school nicely together anyway, a little bit of chasing from the males and flaring fins at each other but nothing overly aggressive) no attempted jumping, but I do have cover plates on my tank as I also have hatchets. I have 20 embers, they’re nice to watch but a bit “meh” lol. In future I’d have a huge shoal of the dwarf pencils.