Congrats on the four new gerbils!
I hope your project with them goes well.
I love the photos, how old are they? They look younger than my 2 gerbils.
Poor Stubby, it looks like she only has half a tail left.

I have plenty of name suggestions, here are some names of my former gerbils all agouti colored.
Peanut, Nibbles, Sniffles, Nosy, Cute, Curious, Sunflower and Cinnamon. Let me know if you like any of the names.