hmm,BH,,,couple things here,,,since ya just got it,,,mebbe "net burn",,

from it getting moved,,,,,
is the cloudiness constant thru the whole lens vs "spots " as you mentioned?
both eyes "milky"?
my RX:
cut back on feeding a lil,,
water quality,,,you know your paramters?if not have it checked,,
i know its a new fish,how old is the tank?
BTW: notice any sloughing of the skin "film"?(kinda of a milky film,,once inna while is OK,,,too much , not good)
if you can , i'd recommend using a Magnum with Diatom powder,and if you can find it, Vortex powdered carbon in with it,,,if not throw a bag of carbon in (sump/filter)
water changes, if parameters are "off". make sure replacement water is the same SG and temp as the tank water.
also Selcon and or Garlic added to the food might help it recover,,
as far as meds,,,really can't help you there, just remember, if it does not say on the med bottle,,dose
1/2 the dose , due to the lion is scaleless,,,,
bottom line, i would say water quality,and/or mebbe net burn/abrasion from being caught,,dunno , do you know a net was used?
hope this helped,,maybe someone else can offer a different light on this,,,
good luck , keep us posted
