Exceptional filtration in aquariums up to 110 US gallons (400 Liters)

Exceptional filtration in aquariums up to 75 US gallons (300 Liters)

Potassium supplement for the planted aquarium
Highly concentrated (50,000 mg/L)
Does not contain phosphate or nitrate making it ideal for use with Flourish Nitrogen and Flourish Phosphorus

Powerful adsorbent of copper and heavy metals
Copper specific chelating resin
Removes all types of copper

Secure base for freshly cut corals and polyps
Contain calcium and magnesium sources for rapid growth
Unique shape aids overgrowth of encrusting coral or polyps

Potassium supplement for the planted aquarium
Highly concentrated (50,000 mg/L)
Does not contain phosphate or nitrate making it ideal for use with Flourish Nitrogen and Flourish Phosphorus

Trace elements supplement for the planted aquarium
Allows for more frequent dosing than a broad spectrum supplement without worrying about a build up of more slowly used component

Nitrogen supplement for the planted aquarium
15,000 mg/L blend of nitrogen sources
Provides nitrogen in both the nitrate form and the ammonium form.

Bioavailable organic carbon source for the planted aquarium
Use as an alternative to CO2 injection or in addition to it
Introduces photosynthetic intermediates

phosfiltrum™ is a specially formulated, high-density, granular ferric oxide (GFO). It will rapidly remove phosphates and silicates from both freshwater and saltwater and will not release them back into your aquarium.

Perfect starter pack for beginners
Contains 100 mL bottles of Flourish®, Flourish Iron™, and Flourish Excel™
Broad spectrum, iron, and carbon