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Aquarium Water Clarifiers

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Particulate matter in aquarium water can be unsightly, and in some cases, harmful to the fish. While not a critical problem most of the time, most aquarium owners would like to be rid of that hazy water. Water clarifiers can remove those particles from the water, making it crystal clear.

Before using a water clarifier, it is wise to make sure you know the underlying cause of the cloudiness. If bacterial blossom is the root cause, water clarifiers will resolve the problem. Newly started aquariums often experience cloudiness when first set up. Once the biological colonies have stabilize, the initial cloudiness will clear up. Cloudiness that occurs in an established aquarium is often the result of particulate matter, which responds well to water clarifiers.

1. Acurel Loving Pets Water Clarifier

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Acurel is a flocculant that causes microscopic particles to clump together so they are caught in the filter, resulting in clear water within 24 hours. Made from natural products, it is safe for all fish and live plants. comes in 25 ml, 50 ml, 150 ml and 250 ml bottles. 25 ml will treat 250 gallons of aquarium water.
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2. Aquarium Products Crystal Clear Water Clarifier

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Aquarium Products Pro Crystal Clear Water Clarifier aggregates particulate matter in the aquarium water, allowing it to be captured by the filtration system. Safe for fish and plants, it comes in a 3/4 ounce bottle that will treat up to 400 gallons of aquarium water.
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3. Aqueon Water Clarifier

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Aqueon Water Clarifier aggregates particles that make the aquarium water cloudy, allowing them to be filtered out of the water or settle to the bottom where they can be vacuumed out. Comes in 2 ounce, 4 ounce, 8 ounce, and 16 ounce bottles.
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4. Carib Sea BioMagnet Water Clarifier

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Carib Sea BioMagnet™ clarifier imparts a positive electrical charge fine suspended particles, making them cling to the filter media. It is safe for freshwater and saltwater aquariums, and any species of fish. Available in 8 ounce, 16 ounce and one gallon bottles. 16 ounces will treat up to 1,000 gallons of aquarium water.
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5. Clear-Up Natural Water Clarifier

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Clear-Up Natural Water Clarifier consists of beneficial bacteria, with the ability to act as flocculants, removing small particles from the aquarium water. With this product it is recommended that they filter be turned off for a short period after dosing. Read and follow product instructions closely for best results. Comes in 4 ounce, 8 ounce and 16 ounce sizes. Four ounces will treat 240 gallons of fresh water.
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6. Ecological Labs Clarifier Plus

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MICROBE-LIFT Water Clarifier Plus attracts and precipitates suspended particles, allowing them to be vacuumed or filtered out of the aquarium. Safe for freshwater and saltwater fish as well as live plants. Interesting enough, the manufacturer cautions it should not be used with food fish, so don't eat your aquarium fish if you use this product. Comes in 1 ounce, 4 ounce, 8 ounce, 16 ounce, 64 ounce, and 1 gallon sizes. Once ounce will treat up to 120 gallons of aquairum water.
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7. Kent Pro-Clear

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Offered in two formulas, one for saltwater and one for freshwater, Kent Pro-Clear will safely flocculate any algae, dirt, bacteria, or other water clouding particles. It will not harm any species of fish or plants, and contains no phosphate, nitrate, or silicate. One ounce 1ill treat 280 gallons of aquairum water. Available in 4 ounce and 8 ounce bottles.
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8. Nutrafin Clear Fast

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Nutrafin Clear Fast is a fast-acting particulate water clarifier. It acts by creating an ionic attraction in tiny particles of algae, dirt, silt, and fine sand, clumping them into larger clumps that can be removed by the aquarium filter. Comes in a 4 ounce bottle that will treat up to 480 gallons of aquarium water.
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9. Seachem Clarity

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Sea Chem Clarity™ is safe for freshwater, saltwater and reef tanks, as well as live plants. It is formulated to clear particulate as well as chemical cloudiness. Like many flocculants, some cloudiness may appear initially, but will rapidly clear up. 250 ml treats up to 1,000 gallons of aquarium water. Comes in 100 ml, 250 ml, 500 ml, 2 L, 4 L, and 20 L sizes.
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10. Tetra Water Clarifier

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Tetra Water Clarifier is a phosphate free product that rapidly clumps suspended particulate matter, allowing it to be filtered out of the water. Comes in 100 ml, 250 ml, and 500 ml sizes, as well as in the form of Tank Buddy tablets. 100 ml will treat 500 gallons of aquarium water. Tetra Water Clear Tank Buddy Tablets come in a package of 8 tablets. Each tablet treats 10 gallons of aquarium water.
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