Purchase a tank and it came with a fx5 bough all new sponges but need a cheap alternative to ceramic rings or bio balls. Need something I can put in as biomedia
i agree I am a seachem matrix fan, I would get more than you need as its a good ideal to boil it out from time to time. rotate trays so you not lose your bio-filtration.Honestly, you only have to buy biomedia once, why not get the good stuff? I would do either Seachem Matrix or Fluval Biomax (or one of the other porous ceramic medias made to be a biomedia).