Can I use this when cycling my aquarium please thank you

If cycling the aquarium means you are cleaning and changing the water then yes it can. And then it can be used once a week to assist with keeping the tank clean.

can you use this aswell as the tap safe stuff in youre fish tank

I use this and the API water conditioner together.

How much should I put in a 110L tank ?? Will 10ml be ok.

Yes 10ml should do the tick, I would suggest try 10ml first and observe your tank for approximately a week, it not satisfy increase to 15ml. I have a 110L and 120L tanks and only use 10ml in the 110L and 15ml in my 120L and both are satisfactory and the Goldfish appears to be very happy in their water conditions\

At risk of sounds like an idiot. But on the back it says 5ml for each 7.5l... I'm guessing that only added and no for how many litres the tank is?

I am not sure what you are trying to ask, but just calculate the amount for the size of your tank. If you have a 75 litre tank you use 50 mls of the stuff, if it is a 100 litre tank it is about 67 mls and so on.

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🐠 Keep your goldfish’s world crystal clear—because your tank deserves the best!

TRUSTED LEGACY - Backed by 50+ years of API innovation, ensuring reliable and research-driven aquarium care.
SLUDGE BUSTING POWER - Breaks down and consumes fish waste to keep gravel and decorations sparkling clean.
EFFORTLESS WEEKLY CARE - Use once a week to maintain a pristine goldfish habitat without the hassle.
HEALTHY AQUARIUM ECOSYSTEM - Infuses beneficial bacteria that promote a balanced, thriving aquatic environment.
LARGE COVERAGE SMALL BOTTLE - 118 ml treats up to 178 liters of water—maximum impact with minimal effort.

API Goldfish Aquarium Cleaner is a 118 ml liquid treatment designed to naturally break down fish waste and reduce sludge buildup in goldfish aquariums. It promotes a healthy environment by adding beneficial bacteria, treating up to 178 liters of water with weekly use. Trusted for over 50 years, this formula simplifies maintenance so you can enjoy a vibrant, clean tank with less effort.

Reviews

A**R

Works like magic

Wow, works like magic. used it for my two goldfishes, they sure know how to make the tank dirty, my gravel cleaner couldn't even pick up all the poop they made. two days after using this. the poop disappeared.. i can barely see any left at the Botton of the tank and the water looks clearer. my goldfish now can dig through the gravel without accidentally eating their poop but leftover food.

2.04.2025

V**A

Amazing

Keeps the water clean and safe

18.04.2024

E**E

Goldfish Cleaner

This stuff really works - I have three very large fish and this works wonders in reducing the amount of waste in the tank - fish seem to really like it too!It would be nice if it were sold in a larger container as with the size of my tank, it doesn't last too long but I really wouldn't be without it.

3.05.2017

A**N

it is just as it is advertised

did what it was supposed to do very pleased

29.08.2024

S**S

It's okay

It works okay...doesn't last a week.. new goldfish owner having adding a few baby ones that are settling every week there's often a lot of poop bit not everything dissolves after like 4 days. ..cleaning tank once a week anyway so it's not bad

10.08.2018

M**N

Very good

18.06.2024

S**N

Fish tank

Helps with the water slightly but tank still goes green quick

27.10.2021

A**A

Good product

Does what it says and definitely keeps the tank clean. Will but again.

27.04.2019

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TrustScore 4.5 | 7,300+ reviews

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Pet Type	Fish
Product Dimensions	7.62 x 5.08 x 15.24 cm; 136.07 g
Item model number	48B
Item Form	Liquid
Allergen Information	Apple Free
Size	118 ml (Pack of 1)
Volume	4
Number of Items	1
Quantity	1
Batteries required	No
Batteries Included	No
Item Weight	136 g

APIGOLDFISH AQUARIUM CLEANER Aquarium Cleaner 118 ml Bottle

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