API ACCU-CLEAR Freshwater Aquarium Water Clarifier 8-Ounce Bottle
$9.48
Price: $9.48
(as of Oct 17, 2025 11:52:04 UTC – Details)
Clear up green or cloudy water caused by gravel and other floating particles in your freshwater aquarium quickly and safely with API ACCU-CLEAR Freshwater Aquarium Water Clarifier. This liquid clarifier combines tiny particles together to form larger clumps so they can settle at the bottom or be removed by your aquarium filter. API ACCU-CLEAR Water Clarifier quickly eliminates cloudy aquarium water caused by floating particles; water will clear within several hours once it is dosed. If cloudiness persists, another dose can be applied after twenty-four hours. Doses can also be administered weekly as part of your routine maintenance. API ACCU-CLEAR Water Clarifier also improves the overall efficiency of your aquarium filter. With API aquarium products, it’s easy to keep a beautiful saltwater, freshwater or reef aquarium. For almost 60 years API has developed premium solutions with proven and effective results for your family and ours. API offers a range of testing kits, water conditioners, and nutritionally superior food, because we’re dedicated to making a better underwater world. They work to provide a safe, hospitable environment for fish such as tropical community fish, cichlids, goldfish and more. At API, we understand the rewards and relaxation of fishkeeping because we have a passion for fish too.
Is Discontinued By Manufacturer : No
Language : English
Product Dimensions : 2 x 2 x 7.5 inches; 10 ounces
Manufacturer recommended age : 1 month and up
Item model number : 111C
Date First Available : October 15, 2006
Manufacturer : Mars Fishcare
ASIN : B000HHLQO0
Best Sellers Rank: #1,494 in Pet Supplies (See Top 100 in Pet Supplies) #4 in Aquarium Water Treatments
Customer Reviews: 4.6 4.6 out of 5 stars 18,880 ratings var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });
Contains one (1) API ACCU-CLEAR Freshwater Aquarium Water Clarifier 8-Ounce Bottle
Clears cloudy aquarium water
Clumps floating particles into large clusters that can be easily removed by an aquarium filter
Works fast and maximizes filter efficiency
Use weekly and when cloudy water is observed in freshwater aquariums only
Customers say
Customers find the water clarifier effective, with water becoming crystal clear within 24 hours and the tank looking gorgeous after use. The product is easy to use and offers good value for money, with one customer noting it’s particularly suitable for turtle tanks. While some customers report no harm to their fish, others mention it killed their fish and snails.
Mrsbunnybrooks –
API is the best
API is the only product I ever used including when I was professionally cleaning fish tanks. It’s it’s high quality it makes the water quality better it’s very effective in the way it works it’s healthy for your fish and you cannot be the value at all. I have a 28 gallon bow front fish tank this size will last me for probably about 6 months if not longer it’s a good size for a fish tank that size
Angelique –
Clears Your Tank Up Fast! Ecellent Product!
This product is amazing. It clears your tank up fast. I had to restart my cycled tank from a year ago because everything got sick. So I started a new tank and got a bacteria bloom. It was the worst I have ever gotten. I had to take everything out of the tank for a bit becuase it was making them sick!. Then I put them back in and finally it started to clear. But the water wasn’t clearing up fully.I bought this to help. I put in half of the recommened dose for the first day to not overwhelmed my tank. It cleared it up very well. Then the next day the rest of the dose and BOOM my tank is CRYSTAL CLEAR! I foyu’re tank isn’t clearing I haighly recommed this product. Follow the directions and use it sparingly so you don’t kill your tank though. It’s a fantsic product! And it came in less than 24 hours!
Keepin’ It Real Consumer –
Awesome Aquarium Cleaner!
This is an honest review of API ACCU-CLEAR made for freshwater aquariums that I use in my aquarium weekly.Pros: Accu-Clear is a must-have product for any aquarium owner, as it works wonders in creating water clarity in your aquarium. I use it in mine once per week. Just a simple amount about the size of a nickel can significantly improve water clarity and remove any green coloring.Opportunities: None. This is a great product at a good price point that is also in a supply amount that will last a very long time.Overall, ACCU-CLEAR makes cleaning and maintaining my aquarium a breeze. It is fish safe and a great product for algae control.
Mindy Wagner –
Works to clear up mildly cloudy water in new tank.
Cleared my slightly cloudy tank up in just a few hours.
tatiana Leon –
Excellent Product!!
The API ACCU-CLEAR Freshwater Aquarium works exactly as promised. It clears up cloudy water quickly and leaves the tank looking clean and bright. I noticed a big difference within just a few hours, and itâs safe for the fish and plants. Very easy to use and a great product to keep the aquarium looking its best. Highly recommend for any freshwater tank owner!
MJ –
Fast-Acting Clarifier with a Few Caveats
I recently used API ACCU-CLEAR to sort out a frustrating bout of cloudy waterâand it delivered. Within just a couple of hours, the tank went from murky to clear, giving the full-crystal look without a hassle. It works by clumping the micro-particles into larger ones that either get caught in the filter or settle quickly, so itâs easy to remove them during maintenance.Itâs also simple to useâjust dose according to the label, and you can even incorporate it into weekly upkeep to keep things consistently clear. A few users do report that overdosing can stress your fish, so itâs best to stick closely to the recommended amount. Overall, this product strikes a great balance between effectiveness, affordability, and convenienceâand it’s become a regular in my aquarium toolkit.
AlienAnchovies –
Great product!
Works great, really binds the small floating particles so the filters pick it up.
Vic W –
Average
Doesnât do much. Iâll give it a month or two to see if all algae will disappear.
Tran Van Tien –
Great!
ROXANE –
Avant sur un aquarium de 800l, les espaces de nettoyages étaient de 15 jours voir 3 semaines maxi, depuis que j’ai découvert cet article, mes nettoyages sont aujourd’hui espacés d’un mois et l’eau est toujours limpide pendant toute cette période.Aucun problème sur les poissons et les plantes
Thomas Swingler –
Great product, a must have for aquariums
Ryan –
Does the job!
CanadianShopper –
The first 2 days after putting it in our 35 hex, it was cloudy as heck. But then we woke up to the clearest tank ever.I changed the filter, which was new when we put in the clarifier, and it was filthy! I guess it did a great job!