DavidW;866910; said:do a good water change, 25% min., then add salt 1 tablespoon for 10 gallons.
raise temp as high as you can up to as much as 90F. max the airation.
make sure the blackworms you use are clean and active and put lots in the tank.......if you have substrate then make sure it is clean and safe, imo bare bottom is better.
It is not unusual for newly shipped rays to not eat for a week or so, but obviously small/young rays don;t have the reserves of larger ones .
hth
Thanks DavidW! I shall try it.
lots of airstones