Seachem Catappa Tea Bags – Mess-Free Indian Almond Tannins for Blackwater Tanks

All the benefits of Catappa — none of the mess.

Loose leaves work, but the decaying litter isn't for everyone, and dialing in the right amount for your tank is guesswork.

Seachem Catappa Tea Bags deliver the tannins of the Indian Almond tree (Terminalia catappa) in pre-portioned, mess-free bags. They gently lower pH, tint the water a natural tea color, and create the blackwater conditions bettas and shrimp love — while the tannins reduce stress, support the immune system, boost color, and offer mild antibacterial and antifungal benefits.

Seachem Laboratories, founded in 1979 in Madison, Georgia, is known for a science-driven approach to aquarium care, and it brings the same standard to its botanicals: these tea bags deliver clean, pre-portioned Catappa tannins, so you get consistent, repeatable blackwater conditioning without the guesswork of loose leaves.

1. Add one bag to your tank.
2. Let it steep and release its tannins.
3. Monitor the tint and replace as needed.

Blackwater benefits, cleanly. Add to cart.

Why Seachem Catappa Tea Bags

• Mess-free format: pre-portioned bags deliver Catappa tannins without decaying leaf litter.
• Consistent dosing: pre-measured bags take the guesswork out of how much to add.
• Real blackwater conditions: gently lower pH and tint the water the tea color bettas and shrimp love.
• Fish-supporting tannins: reduce stress, support immunity and color, with mild antibacterial and antifungal benefits.

Best For

Blackwater, betta, and shrimp tanks — bettas, Caridina and Neocaridina shrimp, and soft-water species — where you want tannins without loose leaf litter.

FAQ

Which fish and tanks is this for? Blackwater setups — bettas, shrimp, and soft-water species that thrive in soft, tannin-stained water.

How many bags per tank? Start with one bag, let it steep, and monitor the tint; the pre-portioned format means you add another only when the color fades, replacing as needed.

How is this different from loose leaves? Same Catappa tannins and blackwater benefits, but in a clean, pre-measured bag — no decaying litter and no guesswork on quantity.

What It Does

Releases Catappa tannins to gently lower pH, tint the water, and mimic blackwater habitats; reduces stress, supports immunity and color, and offers mild antibacterial and antifungal properties — in a clean, pre-portioned bag.

Note

Not for human consumption.