I have a Red Sea Max Nano and a 4’ tank, those who know me will know I have a Blue Star Leopard in my Nano. Before you all go crazy, let me explain.
I have a Jade Wrasse, Radiant Wrasse, Blackfin Fairy Wrasse, and Two Lubbock’s Fairy Wrasses in my 4’ tank. In my nano I have a Naoko Fairy Wrasse and a Blue Star Leopard temporarily as a grow out tank. I don’t recommend it long term however I had to do the nano as this wrasse when I got it, it wasn’t even 0.25 inches. My jade wrasse on the other hand was Atleast 3 if not 3.5 inch and already slightly aggressive. It’s going on 7 months now and the wrasse is 0.75 inch, possibly smaller. The thing I have seen is with wrasses they grow fast then slow down in growth at a certain point (Usually when they’re at the maturing age). If I had to put this guy into my 4’ tank she would’ve been killed due to stress from the larger wrasses. Do I think she could go in now? Maybe, but do I want to risk it? No, the reason why is these guys can get stressed and flip out then wind up dead the next day. It’s even worse when they’re less than an inch as they’re more susceptible to stress.
Will I keep her in the tank for a few more years? Depends, I’d prefer for her to get Atleast 2.5 inches before she and the naoko go into the 4’ tank.
I hope this gives you an idea on what you can do as long as it’s TEMPORARY.
Get your leopard as small as you can, much smaller than 1 inch if possible. If it’s smaller than 1 inch she won’t be as active as everyone says, she will stay nearer to the rockwork.