Ya, you can't go FW to SW.. suuuuuure. Same tank in both pictures. Also, can't have an anemone is a 30G? Look at the second pic. Anemone and maroon clown have been living happily for over 5 years in that tank. I also have a total of 13 fish in my tank.. and been that way for a loooong time.
its not that you can not
its that those who are uber knowlagable, professional, and crediable, STRONGLY SUGGEST that you do not.
based on my own personal research, i wouldnt.
i also dont think that you should suggest its okay for others to do so.
the point of this forum is to get good information to as many people as possible. therefore, id think it your personal responsibility to not post your personal opinion like its fact, diluting and confusing individuals looking for FACTS to better their knowledge, and strengthen the hobby
keeping a nem in a 30gal is not considered proper husbandry.
and id challenge you to provide me with 1 credible source that says otherwise.