Blue Velvet. This beautiful damsel fish came with our tank. He is fast, spunky, and has the most beautiful colorings. However, he's a tank dominator! He tends to be a bit agressive, so we had to carefully choose his tankmates. Thankfully our aquarium man helped us make good choices of fish that will stand up to him. Now that they are all settled, the others have to stand their ground, but everything is going well and we're enjoying our little beauties.