Small pairs. Hatched from eggs on Aquabid. Currently ~1/2 inch. https://aka.org/!area_Affiliates/wak/Ref_Library/Fundulosoma/Fundul.thierryi.htm Variability in appearance is supposed to be low. Selling due to too many fish in a limited space. Males known to be extremely aggressive and should be isolated or put into a large tank with lots of cover.