Phosphate Minus

Reduces phosphate and silicate levels in marine aquariums. Bonds large amounts of PO4 without negative influence on the aquarium inhabitants.

Available packages:

Description

Efficient medium for fluidization filters

Efficient medium for fluidization filters. Too much food and supplements may be the cause of too high phosphate levels. Due to the unique technology Phosphate Minus effectively reduces phosphate and silicate levels in marine aquariums. Its adsorbing capabilities allow bonding large amounts of phosphate without negative influence on the aquarium inhabitants.

 


Reduce phosphate and silicate levels in a marine aquarium

Phosphate Minus is highly recommended both in new and in matured aquariums. In freshly set aquariums it prevents occurring high phosphate levels and in matured aquariums it reduces PO4 levels and stabilizes water chemistry. Due to maintaining the biological balance in the tank, it prevents the formation of undesirable green algae and the development of cyanobacteria.

 


Stabilize water conditions

Dosage: 25-100 ml per 100 l (27 US gal) of water. Phosphate Minus should be placed in media reactors with suggested water flow of at least 400 l/hr. It’s also suitable for a passive use in filter socks. Phosphate Minus should be replaced every 4 weeks or during significant rise of phosphate levels in the water. Shortly after placing in a filtration system, the product may slightly colour water. Although, Phosphate Minus should not be rinsed before use, brown dust is an active phosphate remover and is completely harmless for the aquatic life. Brown colouration of water will disappear after a short time. Rinsing the product in a RODI water will lower its efficiency.

Additional information

Size

1000 ml, 250 ml, 5000 ml

Where to buy

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Description

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Phosphate Minus on the blog

June 2, 2025

I’m using PO4 Minus. After changing the media, I see a drop in KH, magnesium, and calcium. Is the media causing this? Why?

Author: admin

Yes, Phosphate Minus KH drop is a known side effect. Phosphate Minus is a filtration medium that selectively binds phosphates from the water. However, its use may slightly influence KH (carbonate hardness) due to its chemical activity. Drops in magnesium and calcium are typically unrelated, but they may appear due to other factors like biological […]

May 29, 2025

I’m using Stone Fix and noticed high silicate levels in my water. Testing shows that Stone Fix may be releasing silicates. Should I be concerned, and how can I fix it?

Author: admin

Stone Fix and silicates – this issue can occur, especially in newly established tanks. Most mineral-based materials (rocks, adhesives, sands, zeolites) may release small amounts of silicates into the water. This is a natural and usually temporary process. To reduce silicate levels, perform regular water changes and use Phosphate Minus, which effectively removes both phosphates […]

May 29, 2025

My Phosphate Minus turned reddish-brown after being improperly stored. Could it have lost its effectiveness?

Author: admin

Yes, Phosphate Minus storage conditions directly impact its performance. If the product was exposed to moisture or air due to poor sealing, its phosphate-removal efficiency may be reduced. While it’s still safe to use in your aquarium, the effectiveness could be compromised. Always store Phosphate Minus in a tightly sealed, dry container to preserve its […]