He probably saw a Jewel Curly Tail...I've seen them called Rainbow's on occasion. I have a pair and have found VERY little in the online/book world about them. The caresheet in the other post is pretty good. They LOVE to burrow in sand and bask in a nice hot spot. I keep mine in a 20H with a couple of inches of fine grain sand and some grapevine to climb around on. I keep their basking area around 95. They do well on crickets and/or mealworms. A lot of fun to watch but very quick and do not like to be handled. Let me know if you have any other questions!
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0.3.0 Dogs - Delaney, Darcie, Mali
2.1.0 Cats - Dante, Diesel, Dixie
2.0.0 Cockatiels - Toast, Waffles
0.0.1 Sun Conure - Cher
3.0.0 White's Treefrogs - Splish, Splash, Fernando
1.0.0 Gold Treefrog - Cuervo
4.4.0 Leopard Geckos - Joey, Ross, Chandler, Phoebe, Rachael, Monica, Ben, Emma
3.0.0 Crested Geckos - Stubbie, Lou, Oz
1.1.0 Jewel Curly-Tailed Lizard - Homer, Marge
0.0.2 Mediterranian Geckos - Pinky, Sticky
2.0.0 Chinchillas - Poncho, Zapata
2.0.0 Guinea Pigs - Rodney, Rufus
0.1.0 Long-Haired Hamster - Lucy
0.1.0 Winter White Hamster - Wendy
Not to mention the plethora of fish:
5.0.0 Bettas - Maui, Mahalo, Horatio, Mac, Lonestar
20 Gallon Fresh
*0.0.1 Dinosaur Bicher - Grissom
*0.0.1 Ornate Bicher - RJ
20 Gallon Planted
55 Gallon Planted Community - too many to name 
20 Gallon Marine
*1.1.0 Ocellaris Clown - Jack, Diane
*0.0.1 Orangetailed Damsel - Bobby Magee
1.0.0 Boyfriend - Michael 