It was just ordinary warm tap water straight onto Lifecolor acrylics. No barrier coat, i do have some Klear but still unsure about putting it through my AB.....but if Klear is acrylic based too will the water not just pass through it still and effect the paint?

I do have something called Humbrol Decalfix, i did a small tester on the underside of the tank and this stuff dried out leaving a big greasy stain so i wont be trying that up top. lol

Wonder if it's the Lifecolor it doesn't like?

Guess all i can do is try to minimize the water stain then feather it away with a Q-tip and hope the weathering covers it up.....that or bite the bullet and try Klear out.  :-\

TTFN Matt