Yes.
no it will not but it would attack if it or it's babies are threatened
Green swordtail was created in 1848.
A Swordtail is a type of fish that has a sword shape on their tail. Males have them but females don't.
Swordtail is not a mammal, it's a fish although it gives birth. Another example like Swordtail is Guppy. Guppy gives birth but it's a fish.
A swordtail is a tropical fish and a goldfish is not. The swordtail would need a higher temp. than the goldfish. Depending on where you live it probably wouldn't survive the winter.
yes
They are omnivores. Most commercially available livebearer foods are good and Most of the Tropical Flake mixes will be OK too.
It's a fish.
Her tummy will be smaller.
yes
Swordfish, swordtail