Two different micromussa?

[Krzydmnd]

Hi all!

So I have these two colonies of micromussa (acan, etc... [emoji849]) on the same rock.

The foreground Colony never opens up anywhere close to how much the colony in the background does, and it has yet to sprout any new heads after two months whereas the background colony pops a new one practically weekly.

Are they possibly different varieties?

 

[Tahoe61]

Very possible they are different varieties. They all appreciate the occasional direct feeding.