I suggest you start over----first of all is there anything "living' that has survived?----
That should be removed to quarantine tank----perhaps you have a friend with one setup.
Having done that---list the following for us:
gal of your tank
amount of live rock in the tank
sand bed and depth.
then measure the ammonia, nitrites and nitrates in the tank and post them
judging on the results you will probably need to do a 50-60 percent water change and start cycling again so you might want to start preparing water for that
