Mean time (±s.d.) females spent courting in front of the non-kin (left bars) and brothers (right bars). Given is the time females spent in the choice zone measuring 7×19 cm in front of the males' compartments for outbred (n=9) and inbred fish (n=7) as well as for all females (n=16). Each test lasted 1800 s. n.s., non-significant, **p<0.01.