I'm just starting out. My passion (atm) is zoas. I was told they're good for beginners. However, the more I read about zoa pox, mystery melts, and nudi eating zoas, the more I wonder if my info was bad. Besides pest corals ( like evil 'take over the world polps' or 'masterminding xenias' ) what other good beginner type stuff is out there? Decent colors, easy keeper. Forgiving of gentle salinity swings or other parameter mess ups?