ACUREL F Aquarium Water Clarifier, 250-mL bottle -

Acurel F Aquarium Water Clarifier

By Acurel
Rated 4.2778 out of 5 stars

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$22.91Chewy Price
$34.99Chewy Price

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About This Item


  • Environmentally-friendly, fast-acting formula clears cloudy, green or polluted aquarium water quickly with organic extracts.
  • Can be used as needed short-term or as a long-term daily maintenance formula to maintain crystal clear water.
  • Improves filter efficiency without disturbing beneficial bacteria from biological filtration systems.
  • Helps combat the harmful effects of overfeeding when used daily, and helps reduce clouding from adding new gravel.
  • Made in the USA with only renewable-sourced ingredients, and is totally safe for all freshwater fish, cichlids and plants.

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Questions & Answers

9 Customer Questions

is there any kind of fish (ex mollies) that this should not be used on? or corys? they seem to have an adverse reaction when I add it to the tank??? I've lost several mollies & wondering if this might be the cause?
Answer by ChewyFeb 17, 2021
This product should only be used in fresh water and cichlid aquariums.

Safe for shrimp/snails??
Answer by ChewyMar 19, 2022
This water clarifier is safe for shrimps and snails.

Have 120 gallons aquarium. How many drops do l need?
Answer by ChewyJan 21, 2019
It is recommended to use 2-4 drops per gallon. A 100 gallon aquarium would require approximately 2 teaspoons of the clarifier.

will this work for green algae.
Answer by ChewyAug 01, 2020
The Acurel F Aquarium Water Clarifier is intended to clear cloudy, green, or polluted water that may be a result of green algae.

ReviewsWrite a Review

Rated 4.2778 out of 5 stars
36 Reviews
Would recommend to a friend

36 Customer Reviews

Filter by reviews that mention

Rated 5 out of 5 stars
By Aquarium on Nov 10, 2022

Best products

Best product to clean any fish tank!!! Better than buying those small bottles I just to buy

Rated 5 out of 5 stars
By Smokey on Oct 31, 2022

Great products

My aquarium clear up in about 15 minute after I summit the product in

Rated 5 out of 5 stars
By Great on Nov 1, 2021

Better than Aqueon

I had a cloudy water issue in my 4 month old tank for a few weeks. I tried Aqueons water clarifier, tetras water clarifier, and 50 percent water changes daily. Those thing helped with the cloudiness but it always came back within a few hours. I purchased this stuff after watching a review on YouTube. And those reviews are true. Within 6 hours it had my tank from cloudy to clear. Before and after pictures included.

Rated 5 out of 5 stars
By Vickie on Oct 3, 2021

Glad I found this again

Use to get this from my pet store down the street until they closed awhile back. I like this better then the others I've tried in the past. It's the best to me for my 10yr old turtle as far for clearing her water. Also she just uploaded to a 30 gallon tank not much maintenance cause can't add decorations. She barely likes her filter in her tank but she needs it. Will buy this product again it works for us but remember we don't all take care of our tanks the same way

Rated 5 out of 5 stars
By Doris on Sep 29, 2021

Better than the rest!

I have had nothing but cloudy water in my aquarium since I started it 6 months ago. I have tried every kind of conditioner, filter, testing kit, etc. I have tried cleaning it almost daily -- nothing works! The other conditioner I used merely turned the water orange. Today I put 20 drops into my 5-gallon tank that looked like it had skim milk in it and within an hour -- voila -- it's 90% better! I'll never use anything else again and will continue to do the preventive drops daily.

Rated 4 out of 5 stars
By Indigo on Jun 21, 2021

Worked for me!

This worked on two cichlid tanks (each 75 gallons) within an hour; both are now crystal clear. Another, a 60 gallon goldfish tank is clearer, but still a bit cloudy, despite water changes, filter changes and trying a (useless) Eco-bio block. I'm impressed. Works so much better than any other product I've tried. Will do a water change on the 60 gallon, then try again. Will keep this on autoship.

Rated 1 out of 5 stars
By Amber on Mar 13, 2021

Waste of money

Did not work I have a 20 gal tank and I only have 6 fish in it I put the recommended drops in yesterday at first turned my water from cloudy to brown and this morning it is back to cloudy did not work at all dont waste your money

Rated 5 out of 5 stars
By PalMel on Apr 3, 2021

'This is getting annoying

All was better than expected.. Got item I wanted in 2 days Best company ever,, Will continue to shop with you

Rated 5 out of 5 stars
By Sadie on Feb 19, 2021

Highly recommend

This product did the job fast. After my unsuccessful attempts with other clarifiers and water changes, I am so glad I got this. Only one drop per gallon.

Rated 5 out of 5 stars
By Suze on Feb 1, 2021

Miracle clear!

Put in half the recommended drops for my 10-gallon goldfish tank. Within a couple of hours the cloudy water was crystal clear!