Yes you can swim in it and they won't hurt you.
It is not recommended to swim in water that is being treated with most algaecides.
Yes, you can add chlorine granules and algecide.
Provided there is sufficient water there.
You can definitely install a pond pump in a Koi Fish Pond. http://www.coloradokoi.com/ has a lot of valuable information about caring for your Koi Fish Pond!
Koi is a type of fish. Just don't put koi in the pond and it will not be a koi pond.
The plural of koi, a Japanese karp, is koi.
Yes, some pool shocks are sold with algecide.
in short yes sturgeon can be kept in the same pond as kopi but need different care sturgeon require your pond to be well oxygenated, they also need different food to the koi (sinking pellets) and will have to be removed when administering ertain treatments that are safe for koi but not them (sometimes need removing for upto 2 weeks)
a fish, a koi carp
The Japanese for Koi is nishikigoi.
A koi is a large and colourful Japanese carp.