I'm not sure ... I set-up my tank with . For saltwater.
You must have some kind of bio-filter system running in you tank (i.e power filter, live rock, canister filter). Worked
for me. I also never have ammonia of nitrites because I have a EheI'm Wet/Dry filter. Though it's a nitrate factory. LOL
I wouldn't add any chemicals (except for maybe bio-spira) to your tank. Just let the live rock cycle on it's own. Didn't I read that you just got a clownfish? Hopefully you're putting the clownfish in a QT or cycled tank??? If not, the future does not bode well for the clownfish.