Review on 🌿 SunGrow Mini Catappa Leaves for Fish: Naturally Replicate Native Habitat, Stress Relief for Betta, Easy to Use - 50 Leaves per Pack by Michelle Carey

I'm not a botanist so I can't say where these leaves come from. Here's what I saw in my tanks. They do not darken the water even after a month in the aquarium. Neither shrimp nor snails are attractive. There is no clear benefit from these leaves. I used larger catappa leaves which darkens the water and definitely attracts shrimp and snails. A 4 to 5 inch leaf lives 1 to 2 weeks. I would not recommend this item.