Hi Pam
Ozone will destroy low grade plastic and all rubber. that is why good quality Ozone generator use in them only silicone and never rubber for their air pump and tubing (this is why i used from the beginning silicone tubing for CDS) and air stone that are made to stay good forever.
I think that air stones made for Ozone will be great for CDS.
For those who are using air pump for making CDS and want to control the air flow without buying more expensive pump with air flow control , you can buy a small Air valve at any aquarium store (it is very very very cheap
)
here is a picture of one -