---
product_id: 4828850
title: "Tetra SafeStart Plus, For Newly Set-Up Fish aquariums, 100 ml, 3.38-Ounce"
brand: "tetra"
price: "112 Lei"
currency: RON
in_stock: true
reviews_count: 12
category: "Tetra"
url: https://www.desertcart.ro/products/4828850-tetra-safestart-plus-for-newly-set-up-fish-aquariums-100
store_origin: RO
region: Romania
---

# Accelerates tank cycling in days Reduces ammonia & nitrite toxins Fast-acting bacteria activation Tetra SafeStart Plus, For Newly Set-Up Fish aquariums, 100 ml, 3.38-Ounce

**Brand:** tetra
**Price:** 112 Lei
**Availability:** ✅ In Stock

## Summary

> 🐠 Dive in Now: Cycle Fast, Fish Happy!

## Quick Answers

- **What is this?** Tetra SafeStart Plus, For Newly Set-Up Fish aquariums, 100 ml, 3.38-Ounce by tetra
- **How much does it cost?** 112 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/4828850-tetra-safestart-plus-for-newly-set-up-fish-aquariums-100)

## Best For

- tetra enthusiasts

## Why This Product

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

## Key Features

- • **Trusted Since 1951:** Backed by decades of Tetra expertise, ensuring premium quality and reliable results.
- • **Effortless Aquarium Setup:** Skip the 30-40 day natural cycle—SafeStart Plus gets your tank ready immediately.
- • **Instantly Safe for New Fish:** Start your aquarium journey without the dreaded wait or risk of New Tank Syndrome.
- • **Toxin-Free Water, Happy Fish:** Effectively neutralizes harmful ammonia and nitrite levels for a stress-free aquatic environment.
- • **Scientifically Proven Bio-Filter Boost:** Harnesses live aquatic bacteria to establish a healthy ecosystem in just 3 days.

## Overview

Tetra SafeStart Plus is a 100 ml water treatment solution designed to accelerate the establishment of beneficial bacteria in newly set-up freshwater aquariums. It prevents New Tank Syndrome by rapidly reducing toxic ammonia and nitrite levels, enabling fish to be added immediately without waiting weeks for natural cycling. This fast-acting formula is scientifically proven to cycle tanks in as little as three days, making it an essential starter for both novice and experienced aquarium enthusiasts.

## Description

Product Description Tetra SafeStart Plus creates a biologically active environment to allow fast introduction of fish into newly set-up fish aquariums. Tetra SafeStart Plus reduces dangerous ammonia and nitrite and prevents new tank syndrome for a healthy start for fish in all freshwater aquariums. Contains live bacteria that start working immediately to provide a safe environment for new fish. Tetra SafeStart Plus can also be used after a water change, when adding fish or after medicating.“Cycling” your tank means growing the correct, healthy bacteria on a new filtration system to remove dangerous toxins. New filters are sterile and take 30 to 40 days for bacteria to naturally form. This concentrated formula speeds up the cycling process by accelerating the establishment of beneficial bacteria from the start for instant, safe results. Since 1951, Tetra has developed the world’s most comprehensive body of fish food knowledge, and fishkeeping enthusiasts have looked to the brand for products and solutions that add ease and beauty to their home. Whether you're an experienced hobbyist or just starting out, Tetra has everything you need–-from a large variety of quality fish food and innovative equipment to test kits and decor. desertcart.com Start Your Aquarium Off Right:Tetra SafeStart lets you instantly add fish without waiting the typical amount of time to establish the bio-filter. A patented bacteria blend works quickly to remove dangerous ammonia and nitrate so that you can get started immediately with your new aquarium. SafeStart is ideal to use when adding new fish, after medicating, and for all new aquariums.Creating a healthy, safe aquarium environment for your fish from the beginning is important, so quickly establishing the correct water levels and helpful bacteria in the aquarium is why Tetra has introduced SafeStart. Its proprietary formula prevents New Tank Syndrome and accelerates the establishment of the bio-filter. So whether you're a beginner or a pro, be sure to use SafeStart when adding new fish to your aquarium.How it Works:SafeStart works by introducing all of the beneficial bacteria needed your new aquarium needs to thrive. New filters are sterile and take up to 30 to 40 days for bacteria to naturally form; this makes SafeStart an important first step in any new aquarium. Tetra grows actual aquatic bacteria that are naturally found in aquariums rather than low cost industrial bacteria from terrestrial strains as other products may do.Proven Results:SafeStart is scientifically proven to help keep dangerous ammonia and nitrate out of your aquarium. Simply add SafeStart to your new aquarium for immediately healthy aquarium water…it really is that easy! Bottle Size Aquarium Size 1.69 oz up to 15 gallons 3.98 oz up to 30 gallons 8.45 oz up to 70 gallons Tetra Sets the Bar high in Water Care and Maintenance TreatmentsTetra sets the bar high in water care treatment and maintenance with a four-step, color-coded system. From aquarium start-up and routine maintenance, to trouble shooting solutions and testing, Tetra offers everything you need to keep your aquarium water healthy. Take a look at the chart below to see the full line of Tetra water care treatments. New Aquarium? Tetra SafeStart allows you to safely add fish to your tank immediately. Use AquaSafe whenever adding water to neutralize chlorine and heavy metals. Use EasyBalance weekly to keep your water chemistry balanced. High ammonia? Use AmmoniaSafe liquid or tablets. Cloudy water? Clear it up with WaterClarifier liquid or tablets. Algae issues? Keep in check with AlgaeControl liquid or No More Algae tablets. Tetra EasyStrips make regular water testing a breeze.

Review: Works in 3 days! Tank cycled! - Works every time! I restarted my 20-gallon long tank with new substrate and a new filter, keeping only a small piece of bio sponge. I also switched to soft RO with low ph water from very hard high ph, so I wasn’t sure whether any of the remaining beneficial bacteria survived the change. The bio colony probably took a major hit—maybe even died off completely. After adding Tetra SafeStart Plus, my tank was fully cycled in just three days! Ammonia dropped to zero and nitrates started showing up. WOW! I could have added fish back after those three days, but I waited a little longer just to make sure there were no new spikes. A week later with fish in the tank—still no spikes. I consider the tank cycled again. I can actually see the nitrifying bacteria attaching to the glass in little transparent brown circles and everywhere else, like watching a little petri dish inside my aquarium grow. It’s all good! I’ll let it stay on the glass for a bit before cleaning it off. I poured the whole 3.39 ounce bottle into the filter.
Review: EXCELLENT PRODUCT - Works well. I have done this successfully several times. Make sure you purchase Tetra SafeStart "Plus" and not just SafeStart. Bottle labels are almost identical. Check with the manufacturer if you have questions. Follow the SafeStart "Plus" directions for your size tank. Check the various manufacturer's sites for directions on all products you plan to use. My personal suggestions follow. Patience helps. I am not in favor of fishless starting, while others prefer it. My preference is to start the cycle with fish. Purchase at your LFS, a hardy danio/minnow that you will either keep or return/donate unharmed after a short time. My method proceeds like this: After establishing a stable temperature and filter/light setup for a couple of days, (1) add chlorine/chloramines conditioner, (2) SafeStart "Plus", (3) an ammonia/nitrite/nitrate conditioning additive, and (4) finally the one danio, all in about a 15-minute period in the described order to your aquarium. Additives are used in accordance with manufacturer's recommended concentrations and directions. I prefer to introduce fish slowly rather than all at once. An exception would be extremely territorial types. I am uncomfortable guessing as to the formation of the cycling process, so I test for ammonia, nitrite and nitrate every couple of days. Some skip testing for ammonia. When nitrite forms, then increases substantially and then decreases to "0" and nitrate forms, the cycle is complete. Another fish, or two, may be added when nitrite and ammonia readings are both "0". Overall, ammonia should always remain "0". Nitrite should always remain "0". Continue fish addition each week or so, adding fish sparingly to not more than the stocking maximum for your size aquarium. Less is better. Be patient. Test water parameters. In an abundance of caution, I add a small amount of SafeStart "Plus" daily for about a week or two. Every other day, I add chlorine/chloramines conditioner (converts the chlorine/chloramines and also the ammonia to less toxic forms) to reduce stress on the fish. Dose the conditioner as per bottle directions. What is happening: (1) The bottle bacteria initiate the cycle until naturally forming bacteria are established within the filter and on aquarium surfaces. The natural bacteria are required long term. (2) The chlorine/chloramines/ammonia conditioner converts these chemicals to less toxic forms to help protect the fish during the cycle initiation. (3) Maintain the filter as directed by the manufacturer. Make regular, periodic conditioned water changes, as per your LFS suggestions. The use of modern, chlorine/chloramines/ammonia conditioners during the cycling initiation will not interfere with cycle completion. Check with the manufacturer if concerned. There are several excellent chlorine/chloramines/ammonia conditioning products available. Always use them in accordance with the manufacturer's recommendations. I have my favorites. Consult your LFS for advice and confirm on the manufacturer's site. An abundance of helpful reference literature on aquariums is available.

## Features

- PREVENTS NEW TANK SYNDROME Accelerates of the establishment of healthy bacteria in newly set-up freshwater aquariums
- REDUCES TOXINS Helps remove dangerous levels of ammonia and nitrite
- ACCELERATES TANK CYCLING Helps establish a healthy tank from the start for instant results
- FAST-ACTING Starts working immediately to provide a healthy environment for new fish without a long wait
- USAGE Treat when setting up a new aquarium after a water or filter change when adding new fish or after medication

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B002DZG1BW |
| ASIN  | B002DZG1BW |
| Age Range Description | all ages |
| Batteries | Product Specific batteries required. |
| Batteries  | Product Specific batteries required. |
| Best Sellers Rank | #39,302 in Pet Supplies ( See Top 100 in Pet Supplies ) #373 in Aquarium Water Treatments |
| Brand Name | Tetra |
| Country of Origin | Germany |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,585) |
| Date First Available | August 1, 2004 |
| Date First Available  | August 1, 2004 |
| Department | Unisex-Adult |
| Department  | Unisex-Adult |
| Directions | See label for details |
| Included Components | Tetra SafeStart Water Treatment |
| Is Discontinued By Manufacturer  | No |
| Item Dimensions LxWxH | 1.25 x 2.25 x 4.75 inches |
| Item Package Dimensions L x W x H | 6.89 x 2.36 x 1.54 inches |
| Item Weight | 4.19 ounces |
| Item model number | 77961 |
| Item model number  | 77961 |
| Manufacturer | Tetra |
| Manufacturer  | Tetra |
| Manufacturer recommended age  | 1 month and up |
| Material | Plastic |
| Model Name | Tetra |
| Number of Items | 1 |
| Product Dimensions  | 1.25 x 2.25 x 4.75 inches; 4.19 ounces |
| Size | 100 ml, 3.38-Ounce |
| Style | Classic |
| Target Audience Keyword | fish |
| Warranty Description | See label for details |

## Product Details

- **Brand:** Tetra
- **Item Form:** Liquid
- **Item Weight:** 4.19 ounces
- **Liquid Volume:** 100 Milliliters
- **Manufacturer:** Tetra

## Images

![Tetra SafeStart Plus, For Newly Set-Up Fish aquariums, 100 ml, 3.38-Ounce - Image 1](https://m.media-amazon.com/images/I/61N39jlsVFL.jpg)
![Tetra SafeStart Plus, For Newly Set-Up Fish aquariums, 100 ml, 3.38-Ounce - Image 2](https://m.media-amazon.com/images/I/61WwGctTwfL.jpg)

## Questions & Answers

**Q: Will these steps work: let conditioned water run for 3 days. Add the fish and tetra safe start at the same time. Tank=cycled?**
A: I agree about the statement that 2 weeks are needed at a minimum to fully cycle a tank. Safe start definitely speeds up the process, which usually takes over a month.  If you have a trusted store or friend with an aquarium free of disease, you can also transfer some gravel/substrate or sponge media to speed the process a bit more, but putting fish in before a full two weeks is torturing them (if they even survive) by burning their gills with nitrates and nitrites.  I once tried to put a fish at one week because my test kits (didn’t know they had expired) were indicating that the tank was fully cycled.  The fish was in great distress so I returned it to the store, not wanting to kill it.  At two weeks, I introduced another fish and he’s still happily living in the tank over two years later.  

Please don’t use fish to cycle your tank.  I use aquatic plants that are on the hardier side (Java ferns, Anubias, water wisteria, cryptocoryne…).  Otherwise, you can also dose ammonia (search online for technique) or fish flakes (though they can sometimes get moldy).

**Q: After 4 days my ammonia is 0, nitrite is 0 and nitrates are 5ppm. Is my tank cycled or are these false readings?**
A: That's what happened to my old tank and it stayed cycled! I added safestart at water changes or if adding new fish and all was fine

**Q: can I use water conditioner and this product at the same time?**
A: I know this is a old post but I don't want anyone to read this and loose their fish bc of wrong answers. You CAN NOT use this the same day as a water conditioner. You should use a water conditioner first but you MUST wait 24 hours atleast to add safe start plus. If you read about water conditioner (for instance Prime) it binds ammonia making it harmless to your fish for 24 to 48 hours. The bacteria in Safe start plus need ammonia to feed on. It is, after all, the bacteria that eats ammonia In your tank. If there is no ammonia for it to feed on it will die. So it will be useless and a waist of money if you add it before waiting atleast 24 hours after your water conditioner. I always wait 48 hours to be safe.

**Q: When should i see result ?**
A: It works right away. It's good you have fish so the bacteria can eat the ammonis caused by the fish waste. Dont use any ammonia remover within 24 hrs before or after using safe start. You'll kill the food for the bacteria. I wod wait a week before using ammonia remover after you have used the Safestart.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works in 3 days! Tank cycled!
*by S***L on December 11, 2025*

Works every time! I restarted my 20-gallon long tank with new substrate and a new filter, keeping only a small piece of bio sponge. I also switched to soft RO with low ph water from very hard high ph, so I wasn’t sure whether any of the remaining beneficial bacteria survived the change. The bio colony probably took a major hit—maybe even died off completely. After adding Tetra SafeStart Plus, my tank was fully cycled in just three days! Ammonia dropped to zero and nitrates started showing up. WOW! I could have added fish back after those three days, but I waited a little longer just to make sure there were no new spikes. A week later with fish in the tank—still no spikes. I consider the tank cycled again. I can actually see the nitrifying bacteria attaching to the glass in little transparent brown circles and everywhere else, like watching a little petri dish inside my aquarium grow. It’s all good! I’ll let it stay on the glass for a bit before cleaning it off. I poured the whole 3.39 ounce bottle into the filter.

### ⭐⭐⭐⭐⭐ EXCELLENT PRODUCT
*by K***R on November 6, 2017*

Works well. I have done this successfully several times. Make sure you purchase Tetra SafeStart "Plus" and not just SafeStart. Bottle labels are almost identical. Check with the manufacturer if you have questions. Follow the SafeStart "Plus" directions for your size tank. Check the various manufacturer's sites for directions on all products you plan to use. My personal suggestions follow. Patience helps. I am not in favor of fishless starting, while others prefer it. My preference is to start the cycle with fish. Purchase at your LFS, a hardy danio/minnow that you will either keep or return/donate unharmed after a short time. My method proceeds like this: After establishing a stable temperature and filter/light setup for a couple of days, (1) add chlorine/chloramines conditioner, (2) SafeStart "Plus", (3) an ammonia/nitrite/nitrate conditioning additive, and (4) finally the one danio, all in about a 15-minute period in the described order to your aquarium. Additives are used in accordance with manufacturer's recommended concentrations and directions. I prefer to introduce fish slowly rather than all at once. An exception would be extremely territorial types. I am uncomfortable guessing as to the formation of the cycling process, so I test for ammonia, nitrite and nitrate every couple of days. Some skip testing for ammonia. When nitrite forms, then increases substantially and then decreases to "0" and nitrate forms, the cycle is complete. Another fish, or two, may be added when nitrite and ammonia readings are both "0". Overall, ammonia should always remain "0". Nitrite should always remain "0". Continue fish addition each week or so, adding fish sparingly to not more than the stocking maximum for your size aquarium. Less is better. Be patient. Test water parameters. In an abundance of caution, I add a small amount of SafeStart "Plus" daily for about a week or two. Every other day, I add chlorine/chloramines conditioner (converts the chlorine/chloramines and also the ammonia to less toxic forms) to reduce stress on the fish. Dose the conditioner as per bottle directions. What is happening: (1) The bottle bacteria initiate the cycle until naturally forming bacteria are established within the filter and on aquarium surfaces. The natural bacteria are required long term. (2) The chlorine/chloramines/ammonia conditioner converts these chemicals to less toxic forms to help protect the fish during the cycle initiation. (3) Maintain the filter as directed by the manufacturer. Make regular, periodic conditioned water changes, as per your LFS suggestions. The use of modern, chlorine/chloramines/ammonia conditioners during the cycling initiation will not interfere with cycle completion. Check with the manufacturer if concerned. There are several excellent chlorine/chloramines/ammonia conditioning products available. Always use them in accordance with the manufacturer's recommendations. I have my favorites. Consult your LFS for advice and confirm on the manufacturer's site. An abundance of helpful reference literature on aquariums is available.

### ⭐⭐⭐⭐⭐ GREAT product. this really does help your tank cycle ...
*by S***E on July 24, 2016*

GREAT product. this really does help your tank cycle quickly. this time i started up a 2.5 gallon tank with a filter and heater. it houses a single male betta. i set up tank and put the betta in there last sunday. six nights later (last night) i tested the water and i actually have a small amount of nitrates. no ammonia and no nitrites....YAY! a cycyled tank in 6 days. i've also used safe start to cycle a 20 gallon tank and it did so in 9 days. and even during that time i didn't get any ammonia or nitrite spikes at all. my tips are....add safe start and turn off lights (i think uv light kills the bacteria) i added just before turning at night. also SHAKE THE BOTTLE. shake the crap out of it. not sure why, but thats what i've always heard. and go a head and get a master test kit by API...but you need it to track your water's quality.

## Frequently Bought Together

- Tetra SafeStart Plus, For Newly Set-Up Fish aquariums, 100 ml, 3.38-Ounce
- Tetra 77140 EasyBalance PLUS Water Conditioner, 16.9-Ounce
- Tetra AquaSafe Plus, Aquarium Water Conditioner And Dechlorinator, 33.8 Ounces

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*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-01-27*