Can I get the moreexperienced Ray keepers to input on their preferred methods of filtration for heavybio loads? Whether it is chemical, mechanical, or just simple old biological.As we all know Stingrays create a great deal of waste and yet are one of themost sensitive species of fish to poor water conditions; thus making raykeeping very difficult to some, especially the new comers. I personally am inthe process of adding a Phosban reactor to accommodate Pura Complete Media, anda Fluidized Bed Filter to my already existing biological filtration which isnow struggling to keep up with the demand. Thanks to all who input on thistopic I am sure it will help out many other people. Thank god for MFK!!!