Atlantic Hel-X 13 Bio-Media Add Pack weirs AquaMax Eco Classic features a

AquaMax Eco Classic features a coated magnetic rotor for adverse water conditions and proprietary grounding plate for unparalled safety

Impeller assemblies replace quickly with no tools needed for an extended service life

Will not harm fish or plants

MICROBE-LIFT/Gravel & Substrate Cleaner contains natural cellulosic matter

Atlantic Hel-X 13 Bio-Media Add Pack weirs AquaMax Eco Classic features aMPN: 72731 Biological filtration by colonies of beneficial bacteria removes toxic ammonia, ammonium, and nitrites Hel X 13 provides the perfect substrate for bacteria in ProfiClear Premium Compact Filters and Modules Biological filtration by colonies of beneficial bacteria removes toxic ammonia, ammonium, and nitrites. Hel X Bio media has a huge ratio of protected inner surface versus exposed outer surface so the agitation caused by the turbulent