The antibacterial and antifungal properties of Indian almond leaves are the number one reason why you should add them to your aquarium in the first place. Once you add a suitable amount of Indian almond leaves to your aquarium, they’ll act as a natural remedy for your fish to cure any infections they might have. When added to your aquarium, an Indian almond leaf will gradually break down. And as it does, it releases tannic acid, tannins and other substances into your aquarium. As the tannic acid is released, it lowers the pH of your water. If you want a natural solution to reduce the pH levels in your aquarium, Indian almond leaf helps to achieve just that. A study has also found that Indian almond leaves can significantly decrease water hardness (GH), which can benefit those who use hard water in their aquariums.^[2] Okay, but what good is that for your aquarium? Well, the water out of your faucet probably doesn’t match the ideal conditions of the fish you keep. Indian almond leaves change the water so that it more closely resembles the habitat of your fish, particularly those from Southeast Asia and South America. Fish that benefit from Indian almond leaves include:

• Angelfish
• Barbs
• Betta
• Cory catfish
• Discus
• Gouramis
• Killifish
• Platies
• Rasboras
• Tetra