Adding to my TANK????!!!!!

hmm the only thing i could think of is a Mandarin Dragonette even then the copepods you have in your 55G stand no chance.. the Dragonette would eat too many and would run out a stable food source, even in your 55g. you would need to have a nice size Refuge for the copepods so they can have a safe place to breed. all your other fish will eat a good amount of the copepods to a stable amount. other then that being said i could not really tell you what fish you would like, but maybe you can give it a try dragonettes are not too high in price. and you could Buy some copepods from reef cleaners i believe