Welcome to the forum! I am sorry to hear about your losses. Like others have stated, make sure you check out the care sheets on the site, pet shops couldn't care less about the care of the snake especially if it is a garter. Get as much info as you can from the care sheets and ask any questions you may have on the forum, there are a lot of very helpful folks on here.

One thing I have noticed is that people (not you, just in general) tend to look at garters as a very hardy species in general. As adults that statement is often times true but as little guys there is very little room for mistake. They require a lot of observation and TLC because the slightest aspect left unattended can mean life or death.

I think that is one reason so many on here are so willing to offer help and support, they realize how crucial the care is especially with the youngens. So please don't be shy, if you have a question throw it out there.

Welcome again,

-Thomas