Fish options for 13g cube

[BigB72]

My son killed all my fish by putting soap in my tank. My two clowns a Wyoming white and a black ice with bullet holes also my fire fish and yasha goby. Thankfully most of my coral made it only the two sps frags did not make it.
Just wondering what all your guys recommendations/ suggestions are for the restock?

 

[Ky_acc]

purple firefish or a tiger shrimp goby pair is a cool idea.

Also you might look into a Rainford's Goby

 

[flchamp89]

What cube is that

 

[BigB72]

What cube is that

Not sure I got it from a friend for free the rounded glass corners give it a cool look

 

[TriggersAmuck]

And just to clarify, by restock, you did mean the fish, and not your son?