What are the Differences: Blasto, Lobo, Doughnut, Scoly, and Acan Lord?

[that Reef Guy]

I was just at my first Frag Swap and noticed some corals that I had never seen before at my LFS and wanted to know a little about them before I bought them.

I was just wondering what the differences between the following 5 Corals are as they seem very similar.

They all are circular and very Fleshy.

Obviously, I know Acan Lords are the Smallest.

Are they all in the same Family?

Are they easy or hard to keep?

1. Blasto
2. Lobo
3. Doughnut
4. Scoly
5. Acan Lord

[Sir Patrick]

Moved to the LPS large polyp stony forum.