Looks like there is still a lot of residual tint, but can it be adjusted further without ruining everything else?
Green sea turtle from red sea.
I added another sample close to surface (2..3m)
Hard to say what forms the red stripes. It definitely belongs to landscape, not a lens flare.
There is same effect on the bottom sand where lighting transitions to shadow. I'm quite sure the sand is uniform. So I think it becomes red because of flaws in out correction method (I get the same with 6-axis color correction).