In a couple months I’m gonna have an open 29g and am considering a group of julies, maybe 1 male and 3 female. I was going to use dry base rock and create lots of nooks and caves and use aragonite sand. I haven’t decided on which species but probably one of the smallest types. I have kept lots of Malawi and Vics but never any tangs other than frontosa. Does this sound like it will work? Is a 29 big enough for this?