biological media

Buy in bulk and save big! Great biological media, performance proven over the years, very popular amongst EU aquarists. $70 shipped, 4+ Liters or Gallon+ of 15mm media, brand new. Item will come in large zip lock bag or two, never been used. PayPal only - $70 shipped to your location via...

Up for sale is something you cant buy in small packages. $100 shipped, 4+ Liters or Gallon+ of 25mm media, brand new. Item will come in large zip lock bag or two, never been used. This is the 25mm variety normally reserved for sale in bulk packaging for ponds - used with great results in reef...

Hey all! I just installed a new Reefer Skimmer 900 on a larg reef tank today and the water level is a bit too high. In the past I've placed skimmers on top of a large bio block to get the height needed for the skimmer to work properly and I love the added benefit of having additional bio media...