I love a good challenge, I guess part of the reason I got the mandarin, and that its an awesome looking fish doesnt hurt either lol.
Is your mandarin eating prepared foods? or just still a pod eater?
I wouldnt know where to begin with a 180g. So many options at that level of the game. I've been talking with the b/f and we are contemplating a larger tank for our cichlids right now, they have gotten HUGE, bigger than we thought so we might have to upgrade that tank sooner than later.
I'm also tossing around the idea of upgrading the 125g reef, found a 220 tank and stand for 300$. Can't even imagine moving the entire 125 to a new tank though. hehe... But I'm thinking on it....