Good evening,
I have a 5 month old 12g JBJ NanoCube, everything is going smoothly. I currently have no fish due to an unfortunate mishap where my tank got too hot and boiled all my fish.

However I've resolved the problem.
My parents are moving out of town and want to give me their target mandarin (and also possibly a red hawkfish). I have copepods out the you-know-what in my tank so I don't think he would starve. I also know that mandarins are reef safe.
What are some other things I should know about mandarins? - I don't want to get him if he's going to end up being unhappy (or an ex-mandarin) so I want to research first. I have lots of xenia, mushrooms, etc but no anemones. I have a cleanup crew consisting of:
emerald crab,
peppermint shrimp, 3 snails, and about 10 reef hermits. I have a fuzzy urchin too.
Thanks in advance!