Hello, newbie here. I have a 2-year old 300 liter tank, with live sand and 6-8 large pieces of live rock with a few soft corals, clownfish, a pyjama fish, a blue tang and I bought a magnificent mandarin fish two days a go. I fell in love with him at the shop and thought he would be eating flakes like the others. The seller told me he would only eat frozen artemia. Doing some research online, I found out that most mandarins really only eat criters living on live rock and in the sand substrate....but I don't know if I have enough -or any- such creatures in my tank. I ordered 200 ml of copepods for him, planning to put them in the tank so they will hopefully breed and provide him with his dinner...how should I do that? I read somewhere that I should use a pipe to channel them into the sand before the fish eat them...would that do the job? Also, the mandarin is looking quite happy, spending his day churning the sand around with his fins...but I cannot tell if he eats anything and he does not seem to like the frozen artemia.Please help, I have really fallen in love with him...her actually