Baetis nymph - Natural by Polish Quills Save Liquid error (product-badge line 32): -Infinity% €1.50 Natural Size 16 - €1.50 Size Natural Size 16 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity ADD TO CART Unweighted olive nymph representing little dun larvae, often called a BWO nymph.