I was wondering if anyone knew whether a Hydor 300W external filter is compatible with a fluval 305 external filter? The reason I ask is that the fluval filter hose size is 17mm and the Hydor heater is 16mm, is 1mm difference going to make a difference? if so what is the solution?
Also, my tank is 160l so could i get away with the 200W version?
Also, my tank is 160l so could i get away with the 200W version?