Royal gramma & black cap in same tank?

[m12345y]

How many of you have both in same tank and your tank size?

[kaykay]

I do. Both of them have their own private cave.

Royal gramma has been in my tank for 3 months. Around 2". Can always be seen in the open.

Bought my black cap last weekend. Also 2". Likes to hide under the shade. Maybe because it's new, it hardly forages out. But as I know the exact cave it's at, he can be peeped at easily.

Mine is only a nano tank. Display tank dimension is 24"x12"x 18"(H).

Perhaps it's too soon to tell. Let's wait a while more before passing verdict.

[m12345y]

Thanks.

[CFOh]

Not easy.. must slowly introduce... QT first then Separation box before introduce will have better chance...

Cheers and Happy Reefing....