I would opt for aq salt. Sodium chloride (aq, kosher, sea or rock salt) is not the same thing as Epsom salt which is magnesium sulfate. Two different creatures. I have to agree that this looks like a bacterial infection & if it appeared this quickly, it should be treated before it becomes more serious.
jlk said:Sea salt is fine- just read ingredients first! I have 'pure' sea salt in my kitchen & it has anti-caking agents in it (worse than iodine). Aq salt is just fine if you have it.
paytertot said:My discus has a large nasty sore on his side. Help!
P.s. I know he's stunted looking, he was a rescue x.x
TankMan said:...ouch. I'm sorry you have to deal with it. Looks painful
absolutangel04 said:Not likely, but that depends on exactly what it was. Keep an eye on the others for signs of redness or sores, but I wouldn't it's a contagious issue.
Also, you may want to do an extra pwc to keep the params nice.