Should I use my 56 zoa colonies as food?

[no_bs]

Our first salt tank that we rescued was infested with the little buggers. 3 years later we have none in the DT. Thanks in part to pepermints and a racoon buterfly. There are a few in the sump, but i use them as nutrient export. The shell trick only worked for the manjos for us. The apatasia are hardy things. Sometimes if they are not fully eaten they will hide till they feel there is no danger, then they rear there ugly heads and multiply again. Patience is a vertu. You will win the battle.