All right I know the rule of thumb with tang is to keep them in odd numbers... I have a sailfin tang and a slighty larger powderbrown... Powder brown was added a couple of days ago and is already chasing the sailfin...I went to cap bay today and saw some small tomini tangs which is small enough to put in my 12 nano cube... should i introduce it with the other 2 tangs or should i introduce it to the 12gal... oh i thought i saw somewhere on here that someone was looking for an achillies tang...cap bay has got a nice one about 4inches for $99