hmmmm.. That's a toughie. I'm not sure if 30g is big enough. I really cannot recommend anything that I haven't tried. I can only detail my journey in order to help future reefers that want to try what I've tried. Better yet, not make the same mistakes I've made. I would like to say it'll work but I'm not even sure if my set up is gonna work, say 6-8 months from now. Right now, things are good though so I'm very happy with the tank. Sorry man, I wish I could've been more helpful. Search Mobert's clownfish/anemone tank and I'm sure it'll help out.