Obviously, since they are fish they will swim but Guppies (Lebistes reticularis) are Freshwater Fish and will die shortly after being placed in saltwater.
Guppies are freshwater fish: Sea horses are saltwater fish
They swim.
Yes, guppies do swim, but only if you put them in water.
with its tail
Yes.
Guppies can sense a rapid change of conditions in their environment and will normally respond by swimming in a hyper speed.
Some of them will get eaten, but what you can do to help is to have a plant that is small enough for the baby guppies to swim through. It will protect them when they are that young.
they usualy swim fast in both waters.
Yes.
The guppy is a fresh water fish.
opline gourami, guppies ,hatchet fish
Yes, I've found that if I turn off all the lights and make everything really quiet for about 20 minutes my guppies start to sleep in a school. They all stick together and swim around the tank its really cute.