the best an most humane methods are to use ls, lr and or shrimp, especially if you do not want to keep the damsels, i also don't like this practice, because often teh fish still don't make it, and i agree wtih broomer, i do not like cycle, but some peopple have used it with success, but most(myself included) have nto
i have found i had best success cycling with cured lr, ls and using shrimp(although not completely neccessary to use shrimp wiht lr, it does not hurt)
and if your lfs tells you to, do NOT i repeat do NOT do a water change until the cycle has completed, do nothing and use nothing to reduce the ammonia or trates
HTH