Nature Boys Cassia Curls

Nature Boys Cassia Curls

Nature Boys Cassia Curls are made from carefully selected cassia bark (botanically Cinnamomum aromaticum), rich in natural tannins and offering both functional and aesthetic benefits for aquatic setups. They’re prized for their antibacterial and antifungal properties, which help reduce the risk of bacterial infections, while also providing a natural food source for shrimp and other invertebrates. The curled “tube” design not only looks elegant but also doubles as a cozy hideaway for shrimp, fry or small fish, adding both utility and visual interest to your aquarium.

Usage Instructions

• Pour boiling water over the curls and let soak overnight to extract tannins and soften the material.

• Rinse thoroughly before placing into your tank to remove any residual dust or loose particles.

• Use approximately 1 piece per 20 L of aquarium water (some sources suggest 1 per 30 L; you may adjust to your setup).

• Monitor your aquarium as the curls gradually release tannins, creating a slight tea-colour that benefits many shrimp setups and soft-water fish environments.

Additional Notes

Because of their tannin release, expect a gentle coloration of the water (amber / tea tone) which is normal and often desirable in shrimp and black-water style aquariums. The curls support shrimp grazing by promoting the growth of biofilm on their surface, providing both nutrition and shelter in one. Several retail listings note that hobbyists use these curls in all their shrimp tanks, reinforcing their value in shrimp-specific setups.

View our other Nature Boys products here.

McMerwe’s comments: Beyond their functional benefits, Nature Boys Cassia Curls provide excellent grazing surfaces for shrimp and other bottom dwellers while serving as charming, organic décor. [Rating: 5/5]