sorry that you had to go through that. :(
the loach will be hiding due to the stress of the move,
watch him well as he may end up with white spot.
he will miss the company of the opthers too,so if you can
get more and have the room to occomadate their eventual
size then i would say yes.!
as long as your water is settled,because after a move your
water may be not tip top,check the readings for aleast a week,
if all is settled then maybe introduce a couple more,
and keep checking the readings.