My fish is losing color!! I just came home from going out today and I put on my desk lamp, and I noticed that it seems like my fish is losing color! I don't know if it's just me thinking that he is or if he really is. I'm going to go buy a heater tomorrow because I think that could be the reason... I'm going on vacation for 4 days and my sister will be able to feed him and such when I'm away, but I'm worried!! After I come home I'm going to buy a tank. I don't know what to do! :-?