How to tell if a goldfish is pregnant<br>Find out if your fish is female. The best way to find out the sex of your goldfish is to ask when you buy the fish, or to consult a vet. That said, females goldfish typically have plump bodies.
Pregnant male goldfish are plump.
( z1 plump :domain ( z2 goldfish :ARG1-of ( z3 impregnate ) :mod ( z4 male ) ) )