Does ozone hsve to be fed into a skimmer?

[windemerejack]

Does ozone have to be fed into a skimmer body or is there any other way of using ozone apart from an ozone reactor?

 

[WVNed]

Ozone is a gas that must be mixed into the system water thoroughly to do anything. It also has to be contained so it doesn't harm anyone.
There is no magic easy way to do it.
You can't just feed it into a skimmer either. A skimmer can be easily converted to a reactor though and continue skimming.

 

[CNDReef]

Avast marine also makes a ozone reactor