The killie sold under the name 'golden wonder' or 'golden wonder panchax' is a gold form of Aplocheilus lineatus
$2.99 is a good price too. These are easy killies; quite large, and very good jumpers. Keep your tank covered!!!!
In a spacious well-planted tank, you will have fry appearing with the adults fairly soon, as long as you keep everybody well fed.
Incidently these fish will be fine with Danios, they both come fron Southern Asia, India etc (the wild form, that is, not the gold form! see below)
