Microbe-Lift Phos-Out 4 granules - the gentle form of phosphate removal
The perfect phosphate remover for your saltwater and freshwater aquarium.
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Combat persistent algae growth and achieve crystal-clear water in your aquarium with ARKA Phos-Out 4 Granules. This advanced water treatment rapidly removes dissolved pollutants like phosphate, silicate, and tannins, ensuring optimal conditions for sensitive livestock, including fish, shrimp, and corals. Utilizing pure iron hydroxide, Phos-Out 4 binds contaminants through mechanical absorption without introducing harmful chemicals or affecting essential water parameters.
Key Features & BenefitsUse 50–100 g of Phos-Out 4 Granules per 100 L of water. Place the required dose directly into the included filter bag and position it in a well-flowed area, such as a filter chamber or flow-through area. This product is fully filter-compatible and designed for easy, long-term water quality maintenance.
SpecificationsAchieve superior water quality and protect your aquatic inhabitants with the reliable, non-chemical adsorption power of ARKA Phos-Out 4 Granules.
The perfect phosphate remover for your saltwater and freshwater aquarium.

Which aquarium enthusiast doesn't know it? The almost endless fight against too high phosphate values. The causes are often as varied as the hobby itself and can lie both when using unfiltered tap water as well as through completely natural processes such as Fish excretions, dead plant residues or due to the addition of food. Since not all of these causes of too high phosphate values can be maintained, it is important to regularly control the water values and correct if necessary.
Phosphate absorbers based on granules offer a gentle and effective solution, as they permanently adsorb phosphate and thus prevent too fast fluctuations. This gives the plants and animals in your aquarium the possibility to adapt optimally to a change in the PO4 value.
The granules can be placed in a well-flowed place in the included filter bag, but are also great for use in so-called floating or multi-layer filters.
So if you are looking for a reliable phosphate absorber, which can also be easily placed in the aquarium or technical basin thanks to the included filter bag, then the solution is: Microbe-Lift Phos-Out 4 granules
Phos-Out 4 removes approx
Phosphate PO4 49 - 70 g / kg Silica SiO2 10 - 12 g / kg heavy metals such as copper 8 - 10 g / kg
Phos-Out 4 granules remove phosphate and silicate quickly, safely and permanently. But even less known dangers such as sulphides are removed more safely with Phos-Out 4 - sulphides are gaseous sloth gases, arise in the breakdown process of organic substances and can lead to massive fish losses with increased concentration.
With the visual enhancement of your aquarium, the granules help by removing annoying yellow substances from the water and thus sustainably improves the water quality.
Phos-Out 4 granules allow a targeted lowering of the phosphate content in a form harmless to your animals without affecting the pH value. Especially for sensitive animals, extreme phosphate fluctuations are always at a certain risk.
This iron hydroxide based granules offer you the possibility to remove the phosphate value gently and safely over a longer period of time. Do you not want to lower your values, but keep it steady? This is also no problem, simply adjust the dosage quantity and create the ideal value for all residents.
Phos-Out 4 granules improve the natural growth of corals in case of phosphate problems in the shortest time and prevent unwanted algae growth.
Dosage:
Freshwater aquarium: 25 ml (15 g) / 100 L of water
Saltwater aquarium: 50 ml (30 g) / 100 L of water

Can be used for any sea and freshwater aquarium
Microbe-Lift Phos-Out 4 Granules are perfect for use in any saltwater and freshwater aquarium.
Effective phosphate reduction
Phos-Out 4 granules absorb effectively and sustainably phosphate and thus allow a gentle reduction of the PO4 value in the aquarium.From our door to yours—rely on our global network for quick and secure delivery, wherever you are.
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