HALF OFF PONDS Show and Grow Koi and Goldfish Color Enhancing and Protein Food 50 lb Bag - KOISG-050 Show and Grow Formula 50 Pound (Pack of 1) is up for auction in Pet Supplies. The current bid is $16.00, 90% below the $153.00 MSRP, in New/Like New condition. This auction has ended — similar items appear in live auctions regularly.