JBJ 3D Bio House (L size) 1.5L

Abundant continuous rough porous structure which
increase overall effective surface area.
Abundant three-dimensional porous structure accel-
erate transport of nourishment in water.
Ideal condition for colonization of nitrifying bacteria.
Better reduction of ammonia, nitrate and nitrite
loads.
Maintains neutral GH and pH.
Constant dissolution of minerals.
Added high-quality medical stone volcanic rocks and
rare earth materials in filter material to variety of
trace elements dissolve slowly.
Provides biologically-optimum living environment.