I'm curious about peoples experiences with Blue Striped Cleaner Wrasses. Are they effective at reducing parasites on fish? Do ALL of them perform this function or does it vary among individuals? Are they safe from predation due to their benefit to other fish, i.e., will my Flame Hawk eat it or my Six Line Wrasse harass it to death? Finally, considering their reputation as difficult to adjust to aquarium life is it worth paying 5 to 10 times as much for captive bred? Thank you for your advice!