Jennifer A Kingson New York Times

Karin Wilzig has a hard time choosing a favorite color from among the 64 that she and her husband can use to illuminate the 14 1/2- foot, 450-gallon aquarium in their TriBeCa town house. The default is fuchsia, which turns the dozen koi a deep pink."Not pink," said Mrs Wilzig, 40, an artist and a mother of two small children. "Alan, go to the turqu...

Karin Wilzig has a hard time choosing a favorite color from among the 64 that she and her husband can use to illuminate the 14 1/2- foot, 450-gallon aquarium in their TriBeCa town house. The default is fuchsia, which turns the dozen koi a deep pink."Not pink," said Mrs Wilzig, 40, an artist and a mother of two small children. "Alan, go to the turqu...