Who Gives A Fish Forums

True on the coral types. My Zoas took forever to spread, but the Acans? They blew up fast. Patience is key, but testing's your best friend.

Could be flow too. What's your powerhead situation? If they're not getting enough movement, they might just chill and not grow. I run two Nero 5s in my 50 and it made a huge difference.

I've been using a Bayer dip for my corals with great success. Just look up "Bayer for coral dip" on Google and you'll find the info you need.