sera Catappa Leaves Brown aquarium decor – 10 pieces, natural Indian almond leaves

sera Catappa Leaves Brown are natural Indian almond (Catappa) leaves supplied as a pack of 10 pieces for freshwater aquariums. These tropical almond leaves gradually release tannins and other active substances that mildly acidify and soften the water, imitating blackwater biotope conditions. They create additional surfaces for microfauna, provide hiding places for shrimp and small fish, and can contribute to reduced stress and improved readiness to spawn. The leaves are a natural, untreated aquarium decor component with possible variations in shape, color and size.

Advantages

sera Catappa leaves condition aquarium water by releasing tannins and humic substances that lower pH and soften hardness, supporting species adapted to acidic, tannin-rich environments. The leaves offer bioactive surfaces for microorganisms and detritivores, support wound healing and may help prevent bacterial and fungal infections due to astringent properties. They also serve as supplementary food for shrimps, catfish and other scavengers as they break down.

Suitable for (tasks / use cases)

• Creating blackwater or biotope-style freshwater aquariums
• Providing natural hiding places and grazing surfaces for shrimps and small fish
• Supporting spawning behavior in species that respond to tannin-rich water
• Supplementing diet of detritivores and bottom-dwelling fish
• Temporary water conditioning during transport, quarantine or recovery

Key specifications

• Contents: 10 natural Indian almond (Catappa) leaves
• Intended use: freshwater aquariums
• Effect: gradual release of tannins and humic substances to mildly acidify and soften water
• Release time: active substances released over approximately 2–3 weeks
• Sinking behavior: sinks within 24–48 hours; optional pre-soaking with boiling water speeds sinking
• Compatibility: suitable for shrimp, catfish, other crustaceans and many freshwater fish species

How to use

Place one leaf per the recommended water volume depending on leaf size (S: 1 leaf per 30 l, M: 1 leaf per 60 l, XXL: 1 leaf per 100 l) directly into the aquarium. Leaves will sink naturally within 24–48 hours. To make leaves sink immediately and speed initial breakdown, pour boiling water over them and allow to cool before adding. Active substances are released over about 2–3 weeks; replace leaves as they decompose to maintain conditioning and bioactive surfaces. Monitor water parameters and perform regular maintenance as required for your livestock.

Usage recommendations

Start with a conservative dosing and check pH and water hardness after addition; adjust the number of leaves to achieve the desired tannin level. Remove large decomposed fragments during water changes and replace leaves periodically to sustain water conditioning and grazing surfaces.