Just got hold of a second hand eheim 2217 thing is it only came with the hockey sticks ( inlet & outlet) am I right in thinking I need 12/16mm outlet pipe & 16/22 for the inlet?
Also is the biological media put in loose? Or could I put it into a pair of our lasses tights?
Also is the biological media put in loose? Or could I put it into a pair of our lasses tights?