Fritz Clarifier – Clear Water Solution for Aquariums
Cloudy, discolored water is caused by overfeeding, biological blooms, gravel dust and other suspended particles that are too fine to be removed by mechanical filtration and stay in the water column. Fritz Clarifier rapidly clears water by pulling together (flocculating) fine particles, allowing them to be removed by the filter or settle to the bottom, leaving your aquarium crystal clear.
Fritz Clarifier will not affect bio-filtration, pH or other important water parameters like other brands. Safe and effective for use in freshwater, saltwater, reef aquariums and ponds. 100% phosphate free; safe for all fish, plants and invertebrates; will not contribute to future cloudy water problems.
Directions & Dosage
- Follow recommended dosage based on tank size and water conditions.
- Add directly to the aquarium water.
- Allow 15 to 30 minutes for particles to flocculate before filtering or settling.
| Application | Recommended Dosage |
|---|---|
| Freshwater aquariums (up to 50 gallons) | 1 ml per 10 gallons |
| Saltwater aquariums (up to 100 gallons) | 1 ml per 15 gallons |
| Reef tanks | 1 ml per 20 gallons |
FAQ
Can Fritz Clarifier be used in a new aquarium setup?
Yes, Fritz Clarifier is safe to use in new aquariums. It does not affect pH or biological filtration and is compatible with established or new systems.
How long does it take to see clear water after adding Fritz Clarifier?
Most users see visible improvement within 15 to 30 minutes. Complete clarity may take several hours depending on the level of suspended particles.
Is Fritz Clarifier safe for invertebrates and live plants?
Yes, Fritz Clarifier is 100% phosphate free and safe for all fish, plants, and invertebrates.

Steven Nash –
Used Fritz Clarifier after a week of cloudy water due to overfeeding. The water cleared within 20 minutes. No changes in pH or fish behavior. Works well in a 30-gallon freshwater tank.
Hannah Martin –
My reef tank had persistent cloudiness from gravel dust. After adding the clarifier, particles settled quickly and the water became crystal clear. No negative effects on corals or shrimp.
Jacob May –
It works well for clearing up after feeding. Took about 30 minutes to see results. A little more than recommended dosage helped in a larger tank, but no issues with fish or pH.
Dorothy North –
Used it twice in a row after a biological bloom. Both times the water cleared fast and the filter caught the flocs easily. Safe for my planted tank and snails.