Adding Damselfish to cycle a tank?


Reefing newb
Hello everyone. I have heard from multiple sources, and done some online research that damselfish are good starter fish to help cycle the tank before an octopus is added, and may even help speed up the process. Have any of you used this method? Does it work? I feel this would be safer than using bacteria-starter chemicals, but dont want to kill the damselfish if it doesn't work very well. Thank you!
+1 on the raw shrimp. I used that process and had no issues. No reason to stress out a damsel (or kill it) just to cycle the system.