I am new to this hobby and have a rather silly question. I am currently cycling my 55 gal tank and have 5 Giant Malabar Danios, which I have heard are very hardy and good for cycling. I noticed that one of the Danios was staying away from the group and not doing much. At first I thought he might be sick. I started to look more closely at him and noticed his color was different from the others, and maybe his fins were a little different. Being new to all of this I don't have the trained eye that you guys do. Here are the pictures of one of the Danios and my "mystery fish". Is it a Giant Malabar Danio? Is it sick? What should I do? Sorry about the picture for fish2 but he is kind of scared and is a little hard to photograph. Thanks for all your help.