Fritz Aquatics Catappa Tea Bags – 10 Pack
Introducing Fritz Aquatics Catappa Tea Bags, the perfect solution for harnessing the benefits of tannins in your aquarium. Widely studied and documented, tannins act as natural anti-fungal and anti-bacterial agents, safeguarding your fish and their eggs from infections. With Fritz Catappa Tea Bags, you can control algae growth, manage pest snails and crustaceans, and create an ideal habitat for species that thrive in low pH and soft water.
Catappa leaves have long been utilized in the hobby for their healing properties and their ability to create blackwater biotope aquariums. These leaves serve as shelter, spawning sites, and hiding places for fish, shrimp, and fry. Additionally, they release tannins, lower pH levels, exhibit anti-fungal and anti-bacterial effects, and support a balanced aquatic ecosystem.
| Specification | Details |
|---|---|
| Quantity | 10 tea bags |
| Material | Extracted from Catappa leaves |
| Usage | For aquarium water conditioning and biotope setup |
| Water pH Effect | Lowers pH to create soft, acidic conditions |
FAQ
How do Catappa tea bags affect the pH level in an aquarium?
Catappa tea bags release tannins into the water, which naturally lower the pH, creating a soft, acidic environment suitable for fish and invertebrates that prefer low pH and soft water.
Can Catappa tea bags be used to control algae growth?
Yes, the tannins in Catappa tea bags help inhibit algae growth by altering water chemistry and reducing nutrient availability for algae.
Are these tea bags safe for all types of fish?
Catappa tea bags are best suited for species that thrive in low pH and soft water. They may not be appropriate for fish sensitive to acidic conditions or those requiring stable water parameters.

Christopher Buckland –
I’ve used the Catappa tea bags for two months now and noticed a significant drop in algae growth. My betta fish and shrimp are more active and seem healthier. The water turned a soft brown, which matches what I’ve read about blackwater setups. Easy to use and consistent results.
Jessica Turner –
The tea bags work well for creating a natural blackwater environment. My aquarium has fewer snails and the pH has stabilized at around 6.0. I only use one bag per week, and it’s enough to maintain the desired conditions.
Joe MacLeod –
Great product for setting up a biotope. The tannins help protect my fry from fungal infections. I noticed the water color changed beautifully, and my shrimp are now using the leaves as hiding spots. Very satisfied with the results.