Bio Balls 32mm x 30 balls
Each approximately 32mm in diameter.
Bio Balls are black plastic balls specially designed to provide lots of surfaces within the area they occupy.
Bio Balls are used for biological filtration. The main advantage of bio balls over other biological media is that the surfaces are impossible to clog up (when used with a prefilter)
30 Bio Balls which is roughly around 750ml worth
Each approximately 32mm in diameter.
Bio Balls are black plastic balls specially designed to provide lots of surfaces within the area they occupy.
Bio Balls are used for biological filtration. The main advantage of bio balls over other biological media is that the surfaces are impossible to clog up (when used with a prefilter)