---
product_id: 53908554
title: "ATM Blue Shark (Formerly Colony Marine Colony Marine 100 gal Cycle 32 oz"
brand: "atm"
price: "409 zł"
currency: PLN
in_stock: true
url: https://www.desertcart.pl/products/53908554-atm-blue-shark-formerly-colony-marine-colony-marine-100-gal
store_origin: PL
region: Poland
---

# Nitrifying bacteria Proven strains Instant cycling ATM Blue Shark (Formerly Colony Marine Colony Marine 100 gal Cycle 32 oz

**Brand:** atm
**Price:** 409 zł
**Availability:** ✅ In Stock

## Summary

> 🌊 Dive into Instant Aquarium Bliss!

## Quick Answers

- **What is this?** ATM Blue Shark (Formerly Colony Marine Colony Marine 100 gal Cycle 32 oz by atm
- **How much does it cost?** 409 zł with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/53908554-atm-blue-shark-formerly-colony-marine-colony-marine-100-gal)

## Best For

- atm enthusiasts

## Why This Product

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

## Key Features

- • **No Batteries Needed:** Eco-friendly and hassle-free operation.
- • **All Breed Compatibility:** Perfect for every aquatic friend, big or small.
- • **Proven by Professionals:** Trusted by commercial aquariums worldwide.
- • **Authentic Bacteria Formula:** Only the right species for optimal health.
- • **Cycle Your Aquarium Instantly:** Add fish the same day with confidence!

## Overview

The ATM Blue Shark is a revolutionary aquarium cycling solution that effectively introduces authentic nitrifying bacteria, allowing you to add fish the same day. With proven strains like Nitrococcus and Nitrosococcus, this product is trusted by commercial aquariums and suitable for all breed sizes and life stages. Say goodbye to long waiting periods and hello to a thriving aquatic environment!

## Description

ATM Blue Shark (Formerly Colony Marine Colony Marine 100 gal Cycle 32 oz

## Features

- CYCLES: The one that works, effectively imports actual true nitrifying bacteria
- AUTHENTIC: Other products don't contain the right species of bacteria, Colony Freshwater does!
- STRAINS: Nitrococcus & Nitrosococcus for primary ammonia and nitrite consumption in the marine environment
- INSTANT: Add fish same day, not weeks later
- PROVEN: Used and approved by commercial aquariums

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Product Dimensions | 21.84 x 5.08 x 21.84 cm; 907.18 g |
| Item model number | 870317004170 |
| Breed Recommendation | All Breed Sizes |
| Pet Life Stage | All Stages |
| Item Form | Liquid |
| Colour | White |
| Size | 946 ml (Pack of 1) |
| Number of Items | 1 |
| Quantity | 1 |
| Specific Uses | Aquarium rapid cycling |
| Batteries required | No |
| Batteries Included | No |
| Item Weight | 907 g |

## Images

![ATM Blue Shark (Formerly Colony Marine Colony Marine 100 gal Cycle 32 oz - Image 1](https://m.media-amazon.com/images/I/718m-8QzXcL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: Can this b used when doing water charges**
A: yes but you have to keep skimmers off for 4 days when using it

**Q: Can this  more then once**
A: Yes No need to bacteria grows

**Q: My LFS just told me to add a bottle and wait for the ammonia to drop without having fish in cycle, but states adding fish??**
A: Yes add whole bottle wait an hour add couple of small fish but don't over feed them

**Q: Is this for saltwater tank**
A: Yes, I used this when I set up my marine tank and it worked great. I was able to add fish and livestock a lot quicker.

## Frequently Bought Together

- ATM Blue Shark (Formerly Colony Marine Colony Marine 100 gal Cycle 32 oz
- Seachem Ammonia Alert for Freshwater and Marine Fish
- API SALTWATER MASTER TEST KIT 550-Test Saltwater Aquarium Water Test Kit

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*Product available on Desertcart Poland*
*Store origin: PL*
*Last updated: 2026-01-25*