Introduction

As an aquarium enthusiast, maintaining the perfect environment for your underwater friends is of utmost importance. One factor that plays a critical role in the health of your aquarium plants is the presence of carbonates. In this article, we'll explore how much carbonate to add to RO water for a thriving aquarium.

Understanding Carbonates

Carbonates occur naturally in the water and are an essential component for many aquatic plants. They provide a source of carbon for photosynthesis, which is necessary for the growth and development of your aquarium plants. However, the amount of carbonates present in your tap water may not be sufficient for the needs of your plants, especially if you're using RO (reverse osmosis) water.

Why Add Carbonates to RO Water?

RO water is pure and devoid of any minerals or substances, including carbonates. While this may sound great for your aquarium, it can be detrimental to your plants. Without carbonates, your plants won't be able to photosynthesize effectively, which can lead to stunted growth, yellowing, and eventual death.

Determining the Right Amount of Carbonates

To determine how much carbonate to add to your RO water, you need to measure the alkalinity or carbonate hardness (KH) of your water. KH measures the concentration of carbonates and bicarbonates in your water. Ideally, your KH should be around 3-4 dKH for a planted aquarium.

If your KH is below 3-4 dKH, you need to add carbonates to your water. The amount of carbonate you add will depend on your aquarium volume and KH level. You can use a calculator to determine the right amount of carbonate to add. As a general rule, adding 1 teaspoon of baking soda (sodium bicarbonate) per 50 gallons of water will raise your KH by 1 dKH.

How to Add Carbonates

The easiest way to add carbonates to your aquarium is to dissolve baking soda into your water. You can also use calcium carbonate or potassium carbonate, but these tend to be more expensive and harder to find. When adding carbonates, it's essential to add them gradually to avoid sudden pH fluctuations.

Conclusion

Carbonates are essential for the health and growth of your aquarium plants. If you're using RO water, it's crucial to add carbonates to your water to ensure your plants have the necessary nutrients to thrive. By measuring your KH and adding the right amount of carbonate, you can help your plants reach their full potential and maintain a vibrant and healthy aquarium.