JBL Phosex Ultra

JBL Phosex Ultra is a high-capacity filter material that strips phosphate from aquarium water to help prevent algae. It is an insoluble iron compound that releases nothing back into the water, and works in both freshwater and marine aquariums.

Key features of the JBL Phosex Ultra

• Removes phosphate
• Insoluble iron compound
• For fresh and marine water
• Use in a filter bag

Capacity and usage tips

A 340g quantity permanently binds up to 18,000mg of phosphate, so one fill lasts a long time in most home aquariums. Fill the granules into a universal filter bag and place it where water flows through the bag rather than around it. Test phosphate before you start and again after a week to see how quickly it falls, and in reef tanks bring it down gradually rather than all at once. Because phosphate often comes from overfeeding or tap water, test your tap water too and trim food portions, so the material lasts longer.

Good to know

Place it in a filter bag in a well-flowing part of the filter, and replace it when phosphate levels start to rise.

Product details

• Brand: JBL
• Brand website: jbl.de
• Product: JBL Phosex Ultra
• Category: Fish WaterCare