Hi Sean, I just got the one sexed pair which is like about a 3 1/2" male, and maybe 2 3/4" female. I picked up a sexed pair of chanchos and red isletas as well. Also got a small group of 4 fry of grammodes and amarillos which are in together, but too small I think for the Neets. From what my impression is on the neets, they are super tough little guys that probably wouldn't bother smaller or unagressive type of fish, unless they were trying to breed. I have a midas pair that I got from you that has now bred for the second time. I switched them over to their own tank, so lost most of the fry.