I used to use start as a carbon source for many months after I stopped with the zeo system, just to finish the bottle and never saw any ill effects other than a reduction of nutrients.No, they are not NO3 export system. They have nothing to do with NO3 or PO4. btw I dont think it is good idea to use ZeoStart3 as carbon source in non Zeo system. There are many other carbon sources with well known ingredients vodka, vinegar, NOPOX, etc.
As far as I'm concerned it is just a VS mix and made my own after I ran out!


