How many mated pairs of fish do u have

[Reef Pilot]

I have a pair of Royal Grammas. Very interesting to watch, hang together sometimes, usually in the evenings, seen them going in and out of caves together, and saw one carrying some stuff in its mouth into a cave, maybe nest building.

I also have 3 Pearlscales, and I think 2 of them might be a pair. They often do things in tandem, picking on the rocks, and roaming around the tank. Sometime the 3rd one joins them, but more often he is the outsider. Don't really know if something is happening with the possible pair, or this is just normal social behavior for these fish. But they do look great in my tank, and totally cleaned up my aiptasia problem.