[Skimmer Juice]

flatworm exit can be a risky option , siphon them out frequently add a wrasse , you can try the velvet nudibranchs but I find they die before they kill all of the flatworms. If you do try flatworm exit siphon them out for a few weeks before treating I have seen so many people loose fish and corals because they dont get enough of the flatworms out before using flatworm exit , the flatworms will release toxin when they die so depending on how many you have they can be inside live rock . Then siphon them out as they are dieing and have some water prepared for a big water change . I went the siphon them out manually route and did this for a while and eventually they disappeared , buy a 6 line wrasse or a mystery wrasse should keep them in check