---
product_id: 3767449
title: "Stability Fish Tank Stabilizer - For Freshwater and Marine Aquariums, 16.9 Fl Oz (Pack of 1)"
brand: "seachem"
price: "267 Lei"
currency: RON
in_stock: true
reviews_count: 13
category: "Seachem"
url: https://www.desertcart.ro/products/3767449-stability-fish-tank-stabilizer-for-freshwater-and-marine-aquariums-16
store_origin: RO
region: Romania
---

# Stabilizes water chemistry Rapid biofilter establishment Breaks down ammonia & nitrites Stability Fish Tank Stabilizer - For Freshwater and Marine Aquariums, 16.9 Fl Oz (Pack of 1)

**Brand:** seachem
**Price:** 267 Lei
**Availability:** ✅ In Stock

## Summary

> ♻️ Stabilize your tank, secure your aquatic paradise!

## Quick Answers

- **What is this?** Stability Fish Tank Stabilizer - For Freshwater and Marine Aquariums, 16.9 Fl Oz (Pack of 1) by seachem
- **How much does it cost?** 267 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/3767449-stability-fish-tank-stabilizer-for-freshwater-and-marine-aquariums-16)

## 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

- • **Simple Daily Dosing Routine:** Shake, dose, and relax—easy application with clear instructions for consistent water quality support.
- • **Universal Fresh & Marine Use:** Perfectly formulated for both freshwater and marine aquariums, ensuring versatile tank stability.
- • **Comprehensive Waste Breakdown:** Harness a powerful blend of aerobic, anaerobic, and facultative bacteria to neutralize harmful ammonia, nitrite, and nitrate.
- • **Fast-Track Your Tank’s Biofilter:** Kickstart a healthy aquarium environment by rapidly establishing beneficial bacteria that prevent new tank syndrome.
- • **Stress-Free Livestock Introduction:** Safe for fish, plants, and invertebrates—introduce aquatic life anytime with confidence.

## Overview

Seachem Stability is a scientifically formulated liquid bacterial supplement designed to rapidly establish and maintain a robust biofilter in both freshwater and marine aquariums. By introducing a synergistic blend of beneficial bacteria, it effectively breaks down toxic ammonia, nitrite, and nitrate, preventing new tank syndrome and promoting a stable, healthy aquatic environment. Easy to use and safe for all aquatic life, Stability is an essential daily treatment during the critical first week of tank setup and after major maintenance.

## Description

Seachem Stability Fish Tank Stabilizer - For Freshwater and Marine Aquariums, 16.9 Fl Oz (Pack of 1)

Review: it’s been part of my tank-start routine ever since I started aquascaping 0 years ago - When I set up a small quarantine tank last year, I underestimated how quickly ammonia can spike in a fresh system. Within a day, I was staring at test kit colors I didn’t like. That’s when I reached for Seachem Stability, and it’s been part of my tank-start routine ever since. 🧪 Cycling Support Stability is designed to introduce beneficial bacteria that help break down ammonia and nitrite. In my experience, it noticeably smoothed out parameter swings during the first week of a new setup. It’s not instant magic, but it definitely supports the biological filter getting established faster than doing nothing. 🌊 Water Stability What I appreciate most is how it helps reduce that “new tank unpredictability.” When dosing as directed, ammonia and nitrite levels tended to stabilize more quickly, especially when I was cautious with feeding. It gave me a bit more confidence during those early days. 🐟 Livestock Safety I’ve used it with both freshwater fish and planted setups without seeing stress reactions. It’s marketed as safe for fish, plants, and invertebrates, and I haven’t noticed any cloudiness or negative side effects when using the recommended amounts. 🧴 Ease of Use Application is simple — shake well and dose according to tank volume. The instructions are clear, and you typically use it daily during the initial cycling period. It doesn’t have a strong smell, and it disperses easily in the water. ⏳ Expectations It’s important to keep realistic expectations: you still need to test water parameters and monitor ammonia, nitrite, and nitrate. Stability supports the process — it doesn’t replace proper cycling practices. Patience and regular testing still matter. 💰 Value for Money Considering how much livestock costs (and how stressful ammonia spikes can be), a bottle of Stability feels like inexpensive insurance for new setups or after major filter cleanings.
Review: Keep your tank healthy - I’ve been using Stability for years and very happy with it. The environment of the tank and water quality remains excellent between water changes and maintenance.

## Features

- TANK STABILIZATION: Seachem Stability will rapidly and safely establish the aquarium biofilter in freshwater and marine systems, thereby preventing the #1 cause of fish death: "new tank syndrome".
- TREATMENT: Stability is formulated specifically for the aquarium and contains a synergistic blend of aerobic, anaerobic, and facultative bacteria which facilitate the breakdown of waste organics, ammonia, nitrite, and nitrate.
- BACTERIA GROWTH: The necessary conditions for the growth of Stability's bacteria strains encompass a very broad range. When other bacteria begin to die off (usually from high organic loads caused by the unknown death of an organism), Stability simply becomes more effective.
- USE: Shake Seachem Stability well before use and turn off UV/ozone filter. Use 1 capful (5 mL) for each 40 L (10 US gallons) on the first day with a new aquarium. Then use 1 capful for each 80 L (20 US gallons) daily for 7 days. Fish and other aquatic species may be introduced at any time as long as dosage is maintained for 7 days.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0002APIIW |
| ASIN  | B0002APIIW |
| Age Range Description | All Life Stages |
| Best Sellers Rank | #2,265 in Pet Supplies ( See Top 100 in Pet Supplies ) #10 in Aquarium Water Treatments |
| Brand Name | Seachem |
| Color | Clear |
| Country of Origin | United States |
| Customer Reviews | 4.8 4.8 out of 5 stars (13,146) |
| Date First Available | June 20, 2004 |
| Date First Available  | June 20, 2004 |
| Directions | See Packaging |
| Is Discontinued By Manufacturer  | No |
| Item Dimensions LxWxH | 7.6 x 2 x 1.5 inches |
| Item Package Dimensions L x W x H | 7.48 x 2.36 x 2.28 inches |
| Item Weight | 1.1 Pounds |
| Item model number | 123 |
| Item model number  | 123 |
| Manufacturer | Seachem Laboratories, Inc. |
| Manufacturer  | Seachem Laboratories, Inc. |
| Material | Liquid |
| Model Name | Seachem Stability Fish Tank Stabilizer |
| Number of Items | 1 |
| Product Dimensions  | 7.6 x 2 x 1.5 inches; 1.09 Pounds |
| Size | 500 ml / 16.9 fl oz |
| Specific Uses for Product | Indoor |
| Style | Tank Stabilizer |
| Target Audience Keyword | all fish, fish |

## Product Details

- **Brand:** Seachem
- **Item Form:** Liquid
- **Item Weight:** 1.1 Pounds
- **Liquid Volume:** 500 Milliliters
- **Manufacturer:** Seachem Laboratories, Inc.

## Images

![Stability Fish Tank Stabilizer - For Freshwater and Marine Aquariums, 16.9 Fl Oz (Pack of 1) - Image 1](https://m.media-amazon.com/images/I/61JbGyLvTvL.jpg)

## Available Options

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

## Questions & Answers

**Q: Safe for live plants and shrimp and snails (freshwater)?**
A: Yes, It is safe. Great products and company! You can e-mail Seachem with any questions and they answer every one! Still not sure just ask Seachem. I use their products and have asked them many questions.

**Q: Do I have to take out my filter when I use this?**
A: No

**Q: Does it have any aloe vera**
A: No. This is not a water conditioning product. This product is supposed to add bacteria to the tank water to prevent new tank syndrome. It works well. Until I started using it I lost a lot of fish. Now I don’t loose fish and have even had multiple fish species breed successfully including angel fish.

**Q: For this product to work, do I have to turn off the UV light (algae control)?**
A: UV (algae light) kill bacteria. Since you are trying to establish “good” bacteria, it makes sense to turn off the UV light when dosing. I dose mine at night when the lights are off in the aquarium. This gives the beneficial bacteria time to establish itself.

## Customer Reviews

### ⭐⭐⭐⭐⭐ it’s been part of my tank-start routine ever since I started aquascaping 0 years ago
*by S***M on February 23, 2026*

When I set up a small quarantine tank last year, I underestimated how quickly ammonia can spike in a fresh system. Within a day, I was staring at test kit colors I didn’t like. That’s when I reached for Seachem Stability, and it’s been part of my tank-start routine ever since. 🧪 Cycling Support Stability is designed to introduce beneficial bacteria that help break down ammonia and nitrite. In my experience, it noticeably smoothed out parameter swings during the first week of a new setup. It’s not instant magic, but it definitely supports the biological filter getting established faster than doing nothing. 🌊 Water Stability What I appreciate most is how it helps reduce that “new tank unpredictability.” When dosing as directed, ammonia and nitrite levels tended to stabilize more quickly, especially when I was cautious with feeding. It gave me a bit more confidence during those early days. 🐟 Livestock Safety I’ve used it with both freshwater fish and planted setups without seeing stress reactions. It’s marketed as safe for fish, plants, and invertebrates, and I haven’t noticed any cloudiness or negative side effects when using the recommended amounts. 🧴 Ease of Use Application is simple — shake well and dose according to tank volume. The instructions are clear, and you typically use it daily during the initial cycling period. It doesn’t have a strong smell, and it disperses easily in the water. ⏳ Expectations It’s important to keep realistic expectations: you still need to test water parameters and monitor ammonia, nitrite, and nitrate. Stability supports the process — it doesn’t replace proper cycling practices. Patience and regular testing still matter. 💰 Value for Money Considering how much livestock costs (and how stressful ammonia spikes can be), a bottle of Stability feels like inexpensive insurance for new setups or after major filter cleanings.

### ⭐⭐⭐⭐⭐ Keep your tank healthy
*by C***N on February 15, 2026*

I’ve been using Stability for years and very happy with it. The environment of the tank and water quality remains excellent between water changes and maintenance.

### ⭐⭐⭐⭐⭐ Stability: A Biofilter Essential
*by Z***H on November 20, 2025*

Seachem Stability is a great product, very simple as it is that great nitrifying bacteria that turns fish waste or food from Ammonia to Nitrites and to Nitrates. Ammonia and Nitrites are severely toxic to fish so establishing a tank with this or seeding it with an already established sponge filter is essential to avoid "new tank syndrome" I have been using Seachem products and stability for months but stability and their prime has been staples for every water change to avoid a cycle crash among my API freshwater liquid master test kit. None of their products mess with water clarity, you will see a slight distortion as they settle into the water collumn, although this disperses rather quickly. I highly recommend.

## Frequently Bought Together

- Seachem Stability Fish Tank Stabilizer - For Freshwater and Marine Aquariums, 16.9 Fl Oz (Pack of 1)
- Seachem Prime Fresh and Saltwater Conditioner - Chemical Remover and Detoxifier 500 ml
- Seachem Pristine Aquarium Treatment, 500ml (001438)

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*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-03-14*