Just wanted to give you guys an update.
So I went ahead and got the pair of mandarins last week. I returned my spotted mandarin (a male) to the LFS
My wife was so upset. The guy there is a friend of mine and put him in one of the display tanks. I didn't want him going to a bad place.
The spotted male was attacking both the male and female green mandarins.
Now about the food. After a lot of patience, tricks, and time I've gotten both the male and female green mandarins to accept frozen food. YEAH!!!!! I guess this is quite an accomplishment given what "zuzecawi" posted. The male was easier to get on frozen food than the female. This could be due to the fact that she is much smaller in size and consequently has a smaller mouth. The male eats both frozen brine and mysis to a lesser degree. He even ate KM carnivore pellet food yesterday which was awesome. I think soaking all food in Garlic is the key along with making sure everyone else in the tank has a full belly. Now that they are both trained to eat frozen food they actually chase them in the tank when I put the food in.
I'll have to post a pic of them. It's quite interesting to watch the behavior of the pair. Sometimes the female comes to the front of the tank when I'm there to greet (I'm guessing) but as soon as the male sees her there he comes right at her scaring her back into the rock. Kind of funny. These are some of the most beautiful fish. Thanks again to everyone who posted.