I'm feeding my endli with "spirulina enriched" fish (mostly livebearers and its favorite so far: Rose Barbs). He/she accepts Tilapia filet slices but not mussels.
What about the conservative "safe" size differential question? Is it risky to place say four or six 4" endlis with one measuring a bit over 8"? I am aware of the cannibalism that happens shortly after they hatch but it seems that it also occurs as adults (tank kept conditions, from what I've read around).
as said there growth varies,i got my endlis at 2 in May 23rd,2009,and mines grew from 2" to 14"-16",i grew out a batch of 20 but i only got a few left,i sold some,some got eaten