i am planning on stocking little by little my new 55g tank and i need help deciding what to stock in it.i know its not technically large enough for a tang or anything like that but i want one centerpiece fish for the tank and im going to do smaller fish too i like firefish and maybe areef safe wrasse and some clowns anything.i want you all to give me some ideas on what to stock and what would be a good active and colorful centerpiece fish also i need you to keep in mind im not using a sump right now i have a fluval c4 hob filter rated for 70g plus 80 lbs of live rock. so please give me ideas on what to do