Group of Royal Grammas?

[SoloChromis]

Royal grammas have been my all time favorite species to keep ever since I started, they're affordable, usually hardy/disease resistant, and their color is unmatched. So I was wondering if anyone here has any experience housing multiples together, if so how many grammas and what size tank? Ive got a 120, and I think it would be pretty cool to have a harem of these guys hanging out near the rocks :rollface: How many would you recommend as a maximum (Im not trying to risk anyone)? Thanks guys :beer:

 

[albano]

Couple yrs ago I had 3 in my 450g DT... Didn't take long before 2 paired up and shortly thereafter the 3rd one disappeared... Had the pair for about 6 more months and biggest one died... Still have last one!
Been thinking to get a few more and try it again, but....