Xepta synthetic iron granular resin capable of removing phosphate and silicate from water (fresh and salt). Its high porosity and surface area give it a great capacity to absorb phosphate.
Thanks to its granular and compact structure it is not released into the aquarium. It leaves a residual phosphate value, it will not absorb this element below 0.04ppm.
1 gram of resin is capable of removing 1.99 mg of phosphate.