Grape Caulerpa

Grape Caulerpa (Caulerpa racemosa)

Add natural beauty and nutrient balance to your reef system with Grape Caulerpa, a vibrant green macroalgae prized for its lush, grape-like clusters. Ideal for refugiums or display tanks, this fast-growing macroalgae helps absorb excess nitrates and phosphates, improving overall water quality while reducing nuisance algae growth.

Its dense, trailing structure provides an excellent habitat for pods and small invertebrates, promoting a healthier, more balanced ecosystem.

Care Level: Easy
Lighting: Moderate to high
Flow: Moderate
Growth Rate: Fast
Placement: Refugium or display tank (with caution—trim regularly to prevent overgrowth)

Benefits:

• Efficient nitrate and phosphate reduction
• Supports pod populations
• Naturally improves water clarity
• Low-maintenance and easy to grow under proper lighting

Note: Regular pruning is recommended. Avoid sudden light or nutrient changes to prevent “melting.”

Care:

• Lighting: It requires moderate to strong lighting in the refugium (grow lights in the 6,500K–7,000K range work well). Maintain a light cycle of 8–12 hours per day.
• Flow: Moderate to strong flow helps prevent detritus buildup and encourages even growth.
• Nutrients: Performs best in tanks with detectable nitrates (2–10 ppm) and phosphates (0.03–0.1 ppm). Growth may stall in ultra-low nutrient systems.
• Harvesting: Trim back regularly to prevent overgrowth and maintain nutrient export efficiency.
• Placement: Best kept in a refugium or sump chamber; does not attach to rocks or substrate.

Recommended For:

Refugiums, sumps, and nutrient control in reef aquariums.

FAQ Section

Q: Is this Macro Algae suitable for beginners?
A:  Yes, Grape Caulerpa macro algae are beginner-friendly. It’s one of the easiest and most reliable macroalgae to grow in saltwater tanks. It requires minimal maintenance, thrives under standard refugium lighting, and doesn’t attach to rocks or substrate, making it easy to manage. It is ideal for new reef hobbyists looking to reduce nitrates and phosphates naturally while creating a haven for copepods.

Q: What is the Scientific name?
A: Caulerpa racemosa

Q: What is the common name?
A: Green Grape Algae or Sea Grapes

Q: What is the size and how many pieces are included in this product?
A: The product includes one hand full bag.