Hello . It's a waste of money, as it doesn't work ! I recommend the juwel bio boost tablet, if you want something to start off a new aquariums filter . I've tried both . You still need a minimum of 30 days for it to work though . I default to a fish less cycle now . I use a bio boost tablet plus ammonia solution . Hope that helps .

My aquarium is small at only 10L. How much do i use and how do i measure such a small amount? Its less than 1ml !!

I have 24l and it works out as 0.75ml I use a 1ml pipette which has lines every 0.25ml (eg 0.5ml will be ideal for you its a bit more then the "dose" but it's closer then using over double what you need)

Do you need to add ammonia as well as this product for a fishless first time cycle?

No just food or water from another tank will do Just keep an eye on the ammonia level it will eventually settle down

Will this help a small spike in ammonia ive dobe complete water change and have slight ammonia level

This product will help the growth of good bacteria in your filter which will control ammonia but this will take some time. If your having spikes in ammonia regular water changes of between 10 and 20 percent will help reduce ammonia.

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Interpet Fast Filter Start Treatment to Boost Aquarium Bio Filtration, 125 ml, Fast Acting Beneficial Bacteria, Safe for Fish, 100 g

Product ID: 52677216

Details

Brand
Interpet
Item form
Liquid
Item weight
0.22 Pounds
Liquid volume
125
Manufacturer
Interpet

⚡Fast-acting bacteria boost

🐠Safe for all fish species

🧫Cultured beneficial bacteria

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€ 10.98

Duties & taxes included

In stock

Sold byAmazon CroatiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Details

Brand
Interpet
Item form
Liquid
Item weight
0.22 Pounds

Description

🐟 Transform your tank’s ecosystem in a splash!

FISH SAFE FORMULA - Rapidly breaks down waste without harming your aquatic friends 🐠
HIGH COVERAGE EFFICIENCY - Treats up to 4,500 litres with just 125 ml – maximum value 💧
INSTANT BIOFILTRATION BOOST - Kickstart your aquarium’s natural filtration in minutes ⚡
SCIENTIFICALLY SELECTED BACTERIA - Add proven beneficial cultures for a healthier tank 🧫
PERFECT FOR NEW MAINTAINED TANKS - Ideal for new setups or post-filter cleaning recovery 🔄

Interpet Fast Filter Start Treatment delivers a fast-acting dose of beneficial bacteria designed to jumpstart and maintain aquarium biofiltration. Safe for all fish, this 125 ml liquid formula treats up to 4,500 litres of water, rapidly breaking down waste to create a healthier aquatic environment. Perfect for new tanks or after filter maintenance, it ensures lower fish mortality and crystal-clear water.

Specifications

ASIN	B01DVKMIYQ
Allergen Information	Allergen-Free
Best Sellers Rank	7,527 in Pet Supplies ( See Top 100 in Pet Supplies ) 86 in Aquarium Water Treatments
Brand Name	Interpet
Country Of Origin	United Kingdom
Customer Reviews	4.6 4.6 out of 5 stars (1,646)
Global Trade Identification Number	00755349551033
Included Components	See Description
Item Form	Liquid
Item Type Name	Interpet Fast Filter Start Treatment, to Boost Aquarium Bio Filtration, 125 ml
Item Weight	0.22 Pounds
Liquid Volume	125 Millilitres
Manufacturer	Interpet
Manufacturer Part Number	55103
Model Number	55103
Product Warranty	Manufacturer Fault
Target Species	Fish
UPC	755349551033
Unit Count	125.0 millilitre

Reviews

G**R

Good product

Does as it says , it allowed me to stock my tank with a few fish

9.01.2026

F**R

Booster.

Helps provide a boost when needed.

9.12.2025

M**N

Long lasting

Does as it says it does. You don't have to use a lot so pretty simple and effect, will last a long time.

28.09.2025

L**L

Filter start

Very good item

13.01.2026

J**Y

Starter bottle for new aquarium set up

Had a leak in my 50 gallon tank- drained the lot- redone silicone- filled- plants, rocks, bog wood back in- added the bottle- tested 24 hrs later- Majic- added fish back into tank- no casualties- Delighted- Great price also.🤗

4.12.2024

M**Y

A good product

I have always used this product having had my aquariums for some years now and have always been happy with it.

24.06.2025

D**N

Fish tank

As seen all good

28.09.2025

A**K

beneficial for the equarium

beneficial for the equarium and good value for money

12.08.2024

K**O

Gut

25.10.2025

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ayesha M.

The product exactly matches the description. Very satisfied with my purchase.

5 days ago

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The product quality is outstanding. Exactly what I needed for my work.

1 month ago

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