Acan lord or something else?

[TimeTwister]

I was going to put together an acan lord garden but i have these couple frags that i can't tell if they are lords or something else. When fully open the disks are flatter, almost blasto like instead of the fuller, more rounded look of a lord. Here is a pic of them open and closed.

Here are the lords i was going to put them with, but now i am worried they are different corals and don't want a war.

 

[aromano]

how long have you had them? Are they in same flow lighting? looks very much like a lord but you are right that they look flatter. Maybe lighting flow difference leading to the slight difference in appearance

 

[TimeTwister]

I've had them for about a year now, and other than looking a lot like a favia when i first got them they have pretty much always looked the same no matter where in the tank i put them.

When I first got the frag (Feb. 2016):

Around June 2016 (sorry for potato quality photo):

 

[aromano]

Those pics look more like lords.