How do i get my zoas to grow nice and fat? reef2reef. Ultimate Zoanthids Coral Hacking Guide With Amazing Pictures If you expect fast definitive results offering food particles to your zoas you need to slow down. water quality: reef parameters. test at least your alk, mg and ca to keep their values in good balance and stable. no magic numbers here. just keep them withing the ranges and stable. do not dose without knowing the numbers. Fragging zoanthids is relatively similar to any other type of coral. make sure you use the proper tools and the zoas are healthy enough to be fragged. when successful, the frag will grow new polyps and tissue. at this point, you’re ready to sell, share or trade! what zoanthid types are your favorite? i get asked this quite often. If you have one job with zoanthids, it’s to keep things stable. a drop in temperature overnight shrivels the tentacles and fades the color. keep the temperature consistent between transitioning seasons if you want these little d...