Hi Yellows, SHTCT and SHTCTB's are fairly common. And $20 isn't a bad deal, depending on a lot of things (like the gecko's health.)
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Reptiles:
2.2 Leopard Geckos
1.0 Bearded Dragon
0.1 Box Turtle
0.1 Corn Snake

Bird:
0.1 Jenday Conure

Pups:
2.0 K-9

and lots of tropical fish!

-Patrick