Let me expand upon that :)
I did tests at 8 days and ammo no3 were both zero and no2 was 4ppm all things point to a clear road but i was still a little sceptical about the zeo cycle method so I did a 50% water change and added one tiny fish "just in case" I had every hope things would be fine but I want to put both decoras in at once and I thought one fish dying is better than 2 :) so yes it was a test fish but the test was very easily passed and there was very little risk.... The little bugger had no signs of stress at all .... Started swimming and eating as soon as he was acclimated and in :D