Hey M.F.K.ers, I got one of the small purigen packs today... the one in the little mesh bag.... I stuck it in a H.O.B. filter for now ....Am I way better off putting it in one of My canister filters or will the H.O.B. be fine .I have been reading tons of info on here ,thats kinda what made Me buy it . I just wonder about more vs. less flow for optimum results. Thanks for any advice.