I finally got more of the blue fabric (a slightly different dye lot) and added the border. I was going to do a border with fish tails but it looked odd. And now that I see the fish floating in space, I'm thinking they might need a thin rainbow border that encloses the fish--touching the noses and fins. I am also wondering if I should switch out the blue fish (fifth row, third from right side).
And don't worry about the quilt top suffering from the saggy baggy quilt top disease. It's actually the design board that is suffering.