Yes external. CPR HOB fuge... Moving it from the 20 to hang on my 40g sump.

If I'd read further back, I doubt I would have asked that rather dumb question :rolleyes:

All good.

Are Mandarins super hard to keep? They look awesome. Could I keep one in a mixed reef tank?

http://www.tfhmagazine.com/saltwater...ll-article.htm
http://www.tfhmagazine.com/saltwater...ll-article.htm

I am attempting to do the same thing except on a more lazy scale. I am keeping them in my main tank and just watching for mating signals when they are in the tank. These two articles i found seem to explain quite a lot if you are looking for more information. I also made sure that they had plenty of nooks to hide in so they feel more safe and promote mating

They are not easy. They require a live food source to survive as most won't eat anything else. "Most".

In a bigger community target should be fine, but you will never have more than a spawning show. The fry will either be eaten or filtered out.

I ran a 20 dedicated tank. With refugium (currently for sale) on back. It ran for two years and I shut down as no time.