Its a weather loach, or dojo loach.
She will be happier with others of her own kind as they are very social fish, an odd number groupashould be OK.
Cold water tank is right.
Also they prefer sand as they like to borrow. Often I think I've lost mine only to find the chilling under the sand in a group or piled on top of each other.
She is probably looking for some one to play with as they aren't aggressive.
They like algae waters, and places to hide under...