The Singaporean creator of a new breed of glowing fish said Wednesday he hopes the creatures, which were approved this week for sale in the United States, will help reduce fears over genetically modified products. The Food and Drug Administration (news - web sites) said Tuesday that it won’t regulate the naturally black and silver zebra fish, which have been modified to become fluorescent red, green and orange. The Singapore scientist who created the fish, Gong Zhiyan, said he hopes the pets, produced by adding jelly fish and sea anemone genes, can help people understand genetic manipulation when they go on sale in the United States early next month for $5 a piece.