Sponge Plugs for Farm Test Tube, PVA Habitat Water Feeder Plugs - 10 Pack, Diameter 18mm (0.71 inch) for Colony Moisture Control

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【Reliable Hydration】: Provide a steady water source for your ant colony. These PVA sponge plugs absorb and retain moisture, ensuring your ants stay hydrated without drowning.
【Perfect Fit】: Each sponge plug measures 18mm (0.71 inch) or 15mm (0.59 inch) in diameter, designed to fit standard ant farm test tubes and nest tubes securely.
【Versatile Use】: Ideal for ant farms, test tube setups, and newly harvested nests. Use as a water feeder or moisture regulator in various ant habitats and DIY projects.
【Durable Material】: Made from high-quality PVA sponge, these plugs are soft yet durable, reusable after cleaning, and safe for all ant species including Messor, Camponotus, and Lasius.
【What You Get】: Package includes 10 pieces of PVA ant farm sponge plugs. Ensure a clean and controlled moisture environment for your pet ant colony.