---
product_id: 57632974
title: "Seachem Stability Tank Stabilization System, 2 Litre"
brand: "seachem"
price: "€ 211.77"
currency: EUR
in_stock: true
reviews_count: 11
category: "Seachem"
url: https://www.desertcart.es/products/57632974-seachem-stability-tank-stabilization-system-2-litre
store_origin: ES
region: Spain
---

# 2 Litre concentrated liquid Billions of 4 bacteria species Supports freshwater & marine tanks Seachem Stability Tank Stabilization System, 2 Litre

**Brand:** seachem
**Price:** € 211.77
**Availability:** ✅ In Stock

## Summary

> 🧪 Stability that keeps your tank thriving — don’t let your aquatic friends miss out!

## Quick Answers

- **What is this?** Seachem Stability Tank Stabilization System, 2 Litre by seachem
- **How much does it cost?** € 211.77 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.es](https://www.desertcart.es/products/57632974-seachem-stability-tank-stabilization-system-2-litre)

## Best For

- seachem enthusiasts

## Why This Product

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

## Key Features

- • **Set & Forget Stability:** Ideal for new tanks, filter changes, or livestock additions—keep your aquarium thriving with minimal fuss.
- • **Safe for All Aquatic Life:** Completely harmless to fish, invertebrates, and plants—perfect for both freshwater and marine setups.
- • **Ultra-Concentrated Formula:** Just 5ml treats up to 40L initially, stretching your 2L bottle for months of maintenance dosing.
- • **Crystal Clear Water, Zero Clouding:** Maintains pristine water clarity while balancing ammonia and nitrite levels effortlessly.
- • **Kickstart Your Aquarium's Microbiome:** Harness billions of beneficial bacteria to prevent new tank syndrome and stabilize your aquatic environment.

## Overview

Seachem Stability is a 2-litre liquid bacterial supplement containing billions of four key bacteria species that rapidly establish and maintain a healthy aquarium biofilter. Designed for both freshwater and marine tanks, it prevents new tank syndrome by controlling ammonia and nitrite spikes without clouding water or harming aquatic life. Easy to dose and compatible with all filtration types, it’s the essential go-to for aquarium managers seeking reliable, long-term water stability.

## Description

Product Description It is a product that contains in a liquid, billions of four species of bacteria. Two nitrifying bacteria, one waste eating bacteria and a fourth bacteria species that eats nitrate.Seachem Stability is highly concentrated 5ml for each 40 litres of water for the first 7 days and then 5ml for 80 litres once a month, or with water changes Directions Shake well before use and turn off the UV or ozone filter; Use 1 heaped scoop (5ml) every 40L on the first day, then use 5ml for every 80L for 7 days. P.when('A').execute(function(A) { A.on('a:expander:toggle_description:toggle:collapse', function(data) { window.scroll(0, data.expander.$expander[0].offsetTop-100); }); }); Box Contains water treatment See more

Review: The basics dont get better than this! MUST HAVE - I’ve used Stability across multiple tanks and it’s become a staple in my routine. It reliably helps establish and support the beneficial bacteria that keep ammonia and nitrite in check, so day‑to‑day running is smoother and fish stay comfortable. What I notice in real use New setups settle more predictably, with fewer “new tank” wobbles. After filter cleaning, media changes, or adding new fish, the tank stays stable rather than spiking. No clouding or residue; it’s clean and easy to dose. How I use it (simple routine) New tanks: shake the bottle well and dose per label for the first week. Maintenance: add a dose after larger water changes, filter clean‑outs, or when swapping media. Extra protection: a top‑up when introducing new livestock gives the bacteria a helpful boost. Why it works for me It’s “set and forget”: no special storage fuss, and it plays nicely with sponges, ceramic rings, and premium biomedia. Scales to any filter—HOB, internal, canister, or sump basket. Great value when you run more than one aquarium; the bottle stretches a long way. Tips for best results Put mechanical filtration (sponges/floss) before your biomedia so debris doesn’t smother the bacteria. Don’t over‑clean: rinse media in old tank water, not tap water. Keep good flow and oxygenation; bacteria thrive in well‑oxygenated water. Follow the label, and if you use UV/ozone, pause it for a few hours after dosing. Verdict Simple, dependable, and effective. Stability is the bottle I reach for whenever I start a tank, refresh filters, or just want extra peace of mind. It’s earned a permanent place in my kit—highly recommended.
Review: Reliable bacteria booster—keeps tanks stable during cycling and water changes with zero clouding. - Used this during a fresh setup and again after a major water change—didn’t lose a single fish. Dosed as directed for 7 days and saw no ammonia or nitrite spikes. Water stayed clear, fish stayed active, and no weird smells or reactions. I’ve used it in both planted and bare-bottom tanks—works well with cichlids, shrimp, and fry. Doesn’t cloud the water, and it mixes clean. Bottle’s compact and easy to stash, and the dosing cap’s accurate enough for small tanks. It’s not magic, but it does what it says—keeps things stable when you’re starting fresh or making big changes. I keep a bottle in the gear stash for emergencies and new builds. 👍 Pros ✅ Fast-acting—supports tank cycling and resets ✅ No clouding—water stays clear ✅ Safe for all fish types and inverts ✅ Compact bottle—easy to store ✅ Works with planted and bare setups 👎 Cons ❌ Needs daily dosing for full effect ❌ No visible change—relies on trust and test kits ❌ Cap can drip—wipe after use ❌ Not a cure-all—still need proper filtration 🧭 Personal Review If you want a bacteria booster that keeps your tank stable without the faff, Seachem Stability earns its spot. I’ve used it across new builds and heavy water changes—no drama, just clean results and peace of mind. Proper stash-ready gear for anyone who wants their tank sorted and stress-free.

## Features

- 2 Litres
- Prevent "new tank syndrome"
- Completely harmless to all aquatic organisms as well as aquatic plants
- For freshwater and marine aquariums

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0006JLVR6 |
| Allergen Information | Allergen-Free |
| Batteries Included | No |
| Batteries required | No |
| Best Sellers Rank | 1,479 in Pet Supplies ( See Top 100 in Pet Supplies ) 12 in Aquarium Water Treatments |
| Colour | Clear |
| Customer Reviews | 4.8 4.8 out of 5 stars (13,366) |
| Date First Available | 7 Aug. 2012 |
| External Testing Certification | Não aplicável |
| Item Form | Liquid |
| Item Weight | 1.18 kg |
| Item model number | 001064 |
| Number of Items | 1 |
| Pet Type | Fish |
| Product Dimensions | 24.89 x 11.68 x 11.68 cm; 1.18 kg |
| Quantity | 1 |
| Size | 2 l (Pack of 1) |
| Volume | 2 Litres |

## Product Details

- **Brand:** Seachem
- **Item form:** Liquid
- **Item weight:** 1.18 Kilograms
- **Liquid volume:** 2 Millilitres
- **Manufacturer:** Seachem

## Images

![Seachem Stability Tank Stabilization System, 2 Litre - Image 1](https://m.media-amazon.com/images/I/31RWhsAluWL.jpg)
![Seachem Stability Tank Stabilization System, 2 Litre - Image 2](https://m.media-amazon.com/images/I/713VO6qNQ+L.jpg)
![Seachem Stability Tank Stabilization System, 2 Litre - Image 3](https://m.media-amazon.com/images/I/714oXc9s3sL.jpg)
![Seachem Stability Tank Stabilization System, 2 Litre - Image 4](https://m.media-amazon.com/images/I/71ceFfi3xhL.jpg)
![Seachem Stability Tank Stabilization System, 2 Litre - Image 5](https://m.media-amazon.com/images/I/81XV5lmp+ZL.jpg)

## Questions & Answers

**Q: Does this product help with algee problems in a new tank?  Does it cause algee?**
A: no. use for new tank syndrome with prime and ph conditioner.  also with every water change.

**Q: Can i keep in refrigerator eventhough not required?  Thanks!**
A: Its not needed. The bacteria will live even outside the fridge.

**Q: Is this really the 2L bottle? The picture is not correct.**
A: Don’t let the picture fool you. The 2liter bottle looks different but still the same product.

**Q: How long must uv light be shut off when adding this product ?**
A: This is what I got directly from their website. 
A: The UV and/or ozone should be kept off for the 7 days you are dosing if you are cycling or for at least 24 hours if it is for Stability™ additions of new fish or water changes. The reason both should be turned off is because UV and ozone break down and kill bacteria.

## Customer Reviews

### ⭐⭐⭐⭐⭐ The basics dont get better than this! MUST HAVE
*by P***O on 15 January 2026*

I’ve used Stability across multiple tanks and it’s become a staple in my routine. It reliably helps establish and support the beneficial bacteria that keep ammonia and nitrite in check, so day‑to‑day running is smoother and fish stay comfortable. What I notice in real use New setups settle more predictably, with fewer “new tank” wobbles. After filter cleaning, media changes, or adding new fish, the tank stays stable rather than spiking. No clouding or residue; it’s clean and easy to dose. How I use it (simple routine) New tanks: shake the bottle well and dose per label for the first week. Maintenance: add a dose after larger water changes, filter clean‑outs, or when swapping media. Extra protection: a top‑up when introducing new livestock gives the bacteria a helpful boost. Why it works for me It’s “set and forget”: no special storage fuss, and it plays nicely with sponges, ceramic rings, and premium biomedia. Scales to any filter—HOB, internal, canister, or sump basket. Great value when you run more than one aquarium; the bottle stretches a long way. Tips for best results Put mechanical filtration (sponges/floss) before your biomedia so debris doesn’t smother the bacteria. Don’t over‑clean: rinse media in old tank water, not tap water. Keep good flow and oxygenation; bacteria thrive in well‑oxygenated water. Follow the label, and if you use UV/ozone, pause it for a few hours after dosing. Verdict Simple, dependable, and effective. Stability is the bottle I reach for whenever I start a tank, refresh filters, or just want extra peace of mind. It’s earned a permanent place in my kit—highly recommended.

### ⭐⭐⭐⭐⭐ Reliable bacteria booster—keeps tanks stable during cycling and water changes with zero clouding.
*by G***E on 21 September 2025*

Used this during a fresh setup and again after a major water change—didn’t lose a single fish. Dosed as directed for 7 days and saw no ammonia or nitrite spikes. Water stayed clear, fish stayed active, and no weird smells or reactions. I’ve used it in both planted and bare-bottom tanks—works well with cichlids, shrimp, and fry. Doesn’t cloud the water, and it mixes clean. Bottle’s compact and easy to stash, and the dosing cap’s accurate enough for small tanks. It’s not magic, but it does what it says—keeps things stable when you’re starting fresh or making big changes. I keep a bottle in the gear stash for emergencies and new builds. 👍 Pros ✅ Fast-acting—supports tank cycling and resets ✅ No clouding—water stays clear ✅ Safe for all fish types and inverts ✅ Compact bottle—easy to store ✅ Works with planted and bare setups 👎 Cons ❌ Needs daily dosing for full effect ❌ No visible change—relies on trust and test kits ❌ Cap can drip—wipe after use ❌ Not a cure-all—still need proper filtration 🧭 Personal Review If you want a bacteria booster that keeps your tank stable without the faff, Seachem Stability earns its spot. I’ve used it across new builds and heavy water changes—no drama, just clean results and peace of mind. Proper stash-ready gear for anyone who wants their tank sorted and stress-free.

### ⭐⭐⭐⭐⭐ I’ve been really impressed with how well the Seachem Stability Tank Stabilization System
*by L***E on 2 January 2026*

I’ve been really impressed with how well the Seachem Stability Tank Stabilisation System works in my aquarium! This product makes establishing and maintaining a healthy biofilter so much easier, whether I’m setting up a brand‑new tank or giving my established system a boost. Stability contains a powerful blend of beneficial aerobic, anaerobic, and facultative bacteria that help break down waste, ammonia, nitrite, and nitrate, which is vital for keeping water quality stable and fish thriving. What I particularly love is how gentle and safe it is; it’s completely harmless to fish, plants, and invertebrates, and there’s no risk of overdosing even if you accidentally put in a little extra. The dosing is straightforward, and I’ve seen noticeable improvements in water clarity and overall tank balance after using it during water changes and when cycling new setups. Overall, it’s a dependable, high‑quality product that gives me confidence that my aquarium’s biology is well supported, every day. Highly recommend for both beginners and experienced aquarists!

## Frequently Bought Together

- Seachem Stability Fish Tank Stabilizer - For Freshwater and Marine Aquariums 2L / 67.6 oz
- Seachem Prime Water Conditioner, 2 Liter
- Seachem StressGuard Slime Coat Protection - Stress and Toxic Ammonia Reducer 500 ml

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*Product available on Desertcart Spain*
*Store origin: ES*
*Last updated: 2026-02-19*