You might want to hold off on the mandarin for now. Most reccommend it only be added to a well established tank that is at least 6 months matured and more closer to a year. The tank needs lots of
LR and enough copepods and amphipods (spotted mandarin) as they are their primary source of food. I've read (in TFH magazine) where some people have been able to get them to eat other foods those this is not the norm. Hope this helps.
