[Ali1980]

I ordered 7 ilangi 3cm to 4cm but I doubt they are ilangi as when they fight a yellow stop is so obvious on their belly
Plz help

 

[Ali1980]

Another pic in flash light

 

[noki]

I'm not sure, but they look like juvenile Ilangi, which do get yellow belly sides. The yellow will get bigger as they mature.