JBL Aeras Micro M is a long conical, green air stone for use in fresh and marine water aquaria.
JBL ProSilent Aeras Micro M:Do you have questions about this article ?
+ made out of a extra fine pored silica sand mixture for outstanding fine air bubbles
+ long conical aerating stone with extremely high diffuser surface
+ unobtrusive due to green coloring
+ Size M: 14 cm
+ for fresh and salt water