Description
Overview
Seachem Catappa Leaves are natural Indian almond leaves (Terminalia catappa) used to create a more natural blackwater-style environment in freshwater aquariums. They release beneficial tannins and organic compounds that can help lower pH slightly, tint the water a natural amber colour, and provide a more comfortable habitat for many fish and shrimp species.
Not for human consumption.
Features
- Natural Indian almond leaves (Terminalia catappa)
- Releases tannins and humic substances
- Helps replicate natural blackwater conditions
- May help reduce stress in fish and shrimp
- Provides natural cover and grazing surface for shrimp and microfauna
- Ideal for bettas, tetras, rasboras, shrimp, and other softwater species
Directions
- Rinse leaves before use.
- Add directly to aquarium or sump.
- Leaves will sink over time (usually within a few days).
- Replace as needed depending on desired tint and breakdown.
Notes
- Water will naturally turn amber/brown due to tannins (this is normal).
- Activated carbon or chemical filtration may remove tannins and reduce the effect.
- Add gradually and monitor pH, especially in soft water systems.
Available Sizes (Variants)
Catappa Leaves – Small
- Smaller leaf size for nano tanks, shrimp tanks, and betta aquariums.
Catappa Leaves – Medium
- Medium leaf size for larger aquariums or stronger tannin effect.
Best For
- Bettas
- Shrimp (Neocaridina & Caridina)
- Discus and angelfish
- Tetras and rasboras
- Blackwater biotope aquariums


