Why Are My Anubias Turning Yellow?

Anubias turning yellow and brown. What's wrong? PlantedTank
Anubias turning yellow and brown. What's wrong? PlantedTank from www.reddit.com

If you’re an aquarium enthusiast, then you’ve probably heard of Anubias, the popular aquatic plant. Anubias is a genus of aquatic plants from the family Araceae, and it’s a popular choice for aquariums. Anubias plants are easy to care for, and they look great, so it’s no wonder they’re so popular. But there’s one problem – many Anubias plants start to turn yellow after a while. So why is this happening?

What Causes Anubias to Turn Yellow?

There are a few possible causes for Anubias turning yellow. The most common is a lack of nutrients. Anubias is an aquatic plant, and like all plants, it needs certain nutrients to grow and thrive. If these nutrients are lacking, the leaves of the Anubias will start to turn yellow. Other possible causes include too much light, too much fertilizer, and too much CO2.

How Can I Prevent My Anubias from Turning Yellow?

The best way to prevent Anubias from turning yellow is to make sure it’s getting the right amount of nutrients. Anubias needs a balanced diet of nitrogen, phosphorus, potassium, and trace elements. To ensure your Anubias is getting the right amount of nutrients, fertilize it regularly with a good quality aquarium fertilizer. You can also supplement the fertilizer with trace elements like iron and magnesium.

In addition to fertilizer, Anubias also needs the right amount of light, CO2, and water. Anubias should be placed in an area of the tank that gets medium light, and the water should be kept at a pH of 6-7.5. Anubias also needs CO2 to grow, so if your aquarium doesn’t have a CO2 system, you should consider adding one.

What If My Anubias is Already Yellow?

If your Anubias is already yellow, there are a few things you can do to help revive it. First, check the water parameters and make sure they’re in the right range. If they’re not, you should adjust them as soon as possible. Next, check the lighting and make sure it’s not too bright. Finally, make sure the Anubias is getting enough nutrients. Add more fertilizer if needed, and supplement with trace elements if necessary.

If none of these steps help, you may want to consider cutting back the Anubias or even replacing it with a new one. Anubias can be propagated easily, so you can always start a new one from a cutting.


Anubias is a popular aquatic plant that is easy to care for and looks great in aquariums. Unfortunately, Anubias can sometimes turn yellow due to a lack of nutrients, too much light, too much fertilizer, and too much CO2. To prevent this from happening, make sure your Anubias is getting the right amount of nutrients, light, CO2, and water. If your Anubias is already yellow, you can try to revive it by adjusting the water parameters, checking the lighting, and adding more fertilizer and trace elements. If all else fails, you may need to cut back or replace the Anubias.

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