My dwarf lion fish jumped out of a 5 gallon bucket during transition I put him back in but hes not doing so well his eyes are cloudy hes not eating and very weak but hes surviving what should I do can I treat him or let him die
There really isn't much you can do other than supportive care; dim the lights and ensure there is good aeration. Some people would suggest adding one of the artificial slime coat products, but that is just going to clog the gills, so avoid adding anything like that.
If the fish survives the initial trauma, you may need treat it for secondary bacterial infection.