The fish I used to cycle my tank are called Harlequin Rasboras (R. heteromorpha). They were very tiny when I got them and their colors hadn't come in yet, so they were mostly silver, black and big eyes.
I was changing almost 10 gallons of water every day to keep levels well below the dangerous range. If you aren't prepared to do a lot of work to keep your fish healthy, this is not the best way to start a tank. I knew from researching what I was getting into, and chose month when I would have the spare time to do this. I gave up lurking on this site so I would have time, and am only posting now that my tank is cycled and my water changes are down to once or twice a week.
Dr. Seuss~DLH (brother's cat)~June 2007-
Misty~DSH (my cat & Mooby's mom)-?-
MooBoots(Mooby) ~ DMH(Mom's cat)~July 21, 2008-
Sunshine~ Golden retriever X white german sheperd (Dad's dog)~October 24, 2008-