Why Is My Hummingbird Sugar Water Molding? Here’s How to Fix It
Always replace sugar water every few days. Old water promotes mold growth and can harm hummingbirds.
Wash feeders with hot, soapy water and rinse thoroughly to remove any residue that encourages mold.
Place feeders in a shaded area to prevent the sugar water from heating up and fostering mold growth.
Mix sugar and water in the correct ratio (1:4) to ensure the solution is suitable for hummingbirds and less likely to mold.
Ensure feeders are not leaking, as leaks can create damp environments that mold loves.
Dry feeders completely before refilling to avoid introducing moisture that promotes mold.
Consider adding a small amount of white vinegar to the sugar water to inhibit mold growth.