---
product_id: 537257318
title: "ARC Reef Coralline Algae in a Bottle - Purple Helix, Live Spores and Nitrifying Bacteria for Saltwater Reef Tanks, Seeds Dry Rock with Vibrant Purple Coralline, Treats Up to 50 Gallons, Brush Included"
brand: "arc reef"
price: "€ 25.09"
currency: EUR
in_stock: false
reviews_count: 8
url: https://www.desertcart.pt/products/537257318-arc-reef-coralline-algae-in-a-bottle-purple-helix-live
store_origin: PT
region: Portugal
---

# Rapid nitrifying bacteria boost Treats up to 50 gallons 8 live Coralline algae species ARC Reef Coralline Algae in a Bottle - Purple Helix, Live Spores and Nitrifying Bacteria for Saltwater Reef Tanks, Seeds Dry Rock with Vibrant Purple Coralline, Treats Up to 50 Gallons, Brush Included

**Brand:** arc reef
**Price:** € 25.09
**Availability:** ❌ Out of Stock

## Summary

> 🌈 Unlock the true colors of your reef — live vibrant, grow vibrant!

## Quick Answers

- **What is this?** ARC Reef Coralline Algae in a Bottle - Purple Helix, Live Spores and Nitrifying Bacteria for Saltwater Reef Tanks, Seeds Dry Rock with Vibrant Purple Coralline, Treats Up to 50 Gallons, Brush Included by arc reef
- **How much does it cost?** € 25.09 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/537257318-arc-reef-coralline-algae-in-a-bottle-purple-helix-live)

## Best For

- arc reef enthusiasts

## Why This Product

- Trusted arc reef brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Biological Boost:** Contains live nitrifying bacteria to jumpstart your tank’s nitrogen cycle and enhance overall biome health.
- • **True Live Spores:** Unlike chemical additives, this product seeds your tank with 100% live, lab-cultured spores for authentic reef growth.
- • **Vibrant Purple Power:** 8 distinct live Coralline algae strains deliver rich purple and violet hues that transform your reef into a living masterpiece.
- • **Complete Reef Care Kit:** Includes a handy 9-inch brush and easy dosing instructions to ensure seamless application and optimal results.
- • **Effortless Maintenance:** Slow-growing algae reduces frequent glass cleanings, keeping your aquarium pristine with less hassle.

## Overview

ARC Reef Purple Helix Plus is a premium live algae inoculant featuring 8 carefully selected species of vibrant purple Coralline algae spores combined with live nitrifying bacteria. Designed for saltwater reef tanks up to 50 gallons, it biologically transforms dry rock into colorful living reefscape while accelerating tank stability and reducing maintenance. This all-in-one solution offers authentic, slow-growing algae for lasting beauty and healthier aquatic ecosystems.

## Description

Purple Helix Plus version contains 8 separate strains of live Coralline Algae along with a marine-based nitrifying bacteria. Purple Helix seeds your tank with spores from carefully selected Coralline Algae species. All the species are bright vibrant colored species that grow slowly so aid with tank maintenance..Watch your rockwork as vibrant hues of purple soon form and then grow. It can take up to 10 weeks before you see colorful spots of this algae take hold all over your aquarium and rockwork. The growth timeframe is dependent on your water parameters and tank stability. 1 bottle is needed per each 50 gallons of tank volume, including your sump. This product is a live product and must be used within 30 days.

Review: Worked really great but does take some patience - Worked great, i saw results by the 2 month mark. It started with little spots all over. My tank is well established and rock stable but only now was i finally able to get coralline growth. The colors are very vibrant also, not muted like tanks ive had in the past. I am super happy with these results.
Review: Fast and great quality - Fast shipping with tracking, item exactly as listed, and careful packaging. Smooth transaction and responsive support. A+ experience, I highly recommend this seller.

## Features

- 100% Live Spores Not A Chemical Additive - Unlike calcium-based accelerators, every bottle contains living, lab-cultured Coralline Algae spores to physically introduce the biology needed to turn white dry rock into a colorful living live rock reef
- Contains 8 Purple Helix Species - Includes 8 distinct species of coralline algae chosen to provide a vibrant mix of purple and violet hues that look great and grow slowly, which gives it its bright colors and makes glass cleanings needed less often
- The Fastest Way to Add Vibrant Hues of Purple Lavender and Violet Colors to Your Saltwater Aquarium Reef Tank
- The Only Product that Contains Live Coralline Algae Spores, Not Just Calcium and Magnessium Like Algae Accelerators
- Includes Live Nitrifying Bacteria that will Rapidly Establish New Tanks and Improve the Biome in Existing Aquariums

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0C98S188S |
| ASIN  | B0C98S188S |
| Age Range Description | All Life Stages |
| Best Sellers Rank | #63,510 in Pet Supplies ( See Top 100 in Pet Supplies ) #620 in Aquarium Water Treatments |
| Brand Name | ARC Reef |
| Customer Reviews | 3.9 3.9 out of 5 stars (137) |
| Date First Available | June 23, 2023 |
| Date First Available  | June 23, 2023 |
| Directions | Shake bottle well before use. Add 1 capful (1/2 oz) per 50 gallons of tank volume including sump directly into the water. Repeat every 3 days for the first 2 weeks. Thereafter, use once a week. |
| Included Components | Instructions and 9 inch brush |
| Item Dimensions LxWxH | 6.5 x 2.5 x 2.5 inches |
| Item Package Dimensions L x W x H | 7.4 x 3 x 3 inches |
| Item Weight | 14 Ounces |
| Item model number | ARCCAPLUS8OZ |
| Item model number  | ARCCAPLUS8OZ |
| Manufacturer | ARC Reef |
| Manufacturer  | ARC Reef |
| Model Name | Purple Helix Plus Edition |
| Product Dimensions  | 6.5 x 2.5 x 2.5 inches; 14 ounces |
| Specific Uses for Product | Indoor |
| Target Audience Keyword | Fish |
| Warranty Description | 1 year manufacturer |

## Product Details

- **Brand:** ARC Reef
- **Item Form:** Liquid
- **Item Weight:** 14 Ounces
- **Liquid Volume:** 8 Fluid Ounces
- **Manufacturer:** ARC Reef

## Images

![ARC Reef Coralline Algae in a Bottle - Purple Helix, Live Spores and Nitrifying Bacteria for Saltwater Reef Tanks, Seeds Dry Rock with Vibrant Purple Coralline, Treats Up to 50 Gallons, Brush Included - Image 1](https://m.media-amazon.com/images/I/41V1i-uOHLL.jpg)
![ARC Reef Coralline Algae in a Bottle - Purple Helix, Live Spores and Nitrifying Bacteria for Saltwater Reef Tanks, Seeds Dry Rock with Vibrant Purple Coralline, Treats Up to 50 Gallons, Brush Included - Image 2](https://m.media-amazon.com/images/I/71nSN8YfpuL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Worked really great but does take some patience
*by J***B on December 2, 2025*

Worked great, i saw results by the 2 month mark. It started with little spots all over. My tank is well established and rock stable but only now was i finally able to get coralline growth. The colors are very vibrant also, not muted like tanks ive had in the past. I am super happy with these results.

### ⭐⭐⭐⭐⭐ Fast and great quality
*by C***A on October 18, 2025*

Fast shipping with tracking, item exactly as listed, and careful packaging. Smooth transaction and responsive support. A+ experience, I highly recommend this seller.

### ⭐ Zero growth.
*by I***E on December 23, 2024*

I put this in long enough ago that I should be seeing some results by now, but no growth at all. I have searched the tank high and low for even a speck but zero. My water is fine, fish inverts macros and corals all fine and healthy. Maybe I got a bad bottle?

## Frequently Bought Together

- Coralline Algae in a Bottle, Purple Helix Plus Version, Live Spores + Nitrifying Bacteria
- Coralline Algae in a Bottle + Nitrifying Bacteria for Saltwater Aquariums, Pink Fusion Strain
- Brightwell Aquatics MicroBacter7 Complete Bioculture for Fish Tank or Aquarium - Populates Biological Filter Media for Saltwater and Freshwater Fish - Aquarium Water Treatments, 16.9 fl oz

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**Shop now:** [https://www.desertcart.pt/products/537257318-arc-reef-coralline-algae-in-a-bottle-purple-helix-live](https://www.desertcart.pt/products/537257318-arc-reef-coralline-algae-in-a-bottle-purple-helix-live)

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*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-01-31*