Help - Stain on the Wall from my Aquarium

[speer]

I recently moved my 90 gallon aquarium to a different part of the house and noticed some staining on the wall from saltwater splash. I clean off all of the excess salt and gave the wall a good scrub. It looked better but you could still see what I would assume is just a water stain on the wall. Last week I painted the room with a latex indoor paint. Although the stain is less noticeable after a coat of paint, you can still see it. Any tips for how I can eliminate the stain? Do I need more coats of paint? Should I try and seal it with a primer? If so any good recommendations? I'm putting the house on the market soon so I'd to avoid questions from buyers about the stain on the wall

[Big_Pun]

prime and seal it with kilz primer then repaint

[txav8r]

X2 for Kilz

[speer]

Kicking myself for not priming especially since I have Kilz primer in the garage. Oh well lesson learned. Do you think I will need to prime and re-paint the entire wall or can I get away with just priming and re-painting the stain area? I'm guessing it can't hurt to try and treat the stain first and see how it looks.

[jrsatx20]

U will see the difference if u don't seal n paint the whole wall. It will prob be more noticeable than if u leave it alone.

[alton]

Kilz now makes a odorless enamel sealer that worked great for me on my mother/father in laws smoke filled ceilings.