canister filter test

  1. Aqua Nut

    Flow Test FACE OFF Eheim Pro 4+ 350 VS Hydor Pro 350 Canister Filters

    True Flow Rate Test FACE OFF Eheim Professionel 4+ 350 VS Hydor Professional 350 External Canister Filters Review Today we are comparing the advantages and disadvantages of the Eheim Pro 4 + 350 vs the Hydor Professional 350 series of external canister filters. Which Professionel /...