A very old, beat up pillow tore and I've been using the poly-fill from it. I just realized I've washed it and it probably has traces of detergent in it! It's been over a year, though, and my fishes seem fine and my plants are very happy..
I like crushed bisque-ware as a bio media these days. Bisque-ware is pottery which has been fired just tothe point where the clay particles are sintered - it's very porous and you can make it yourself!
I like crushed bisque-ware as a bio media these days. Bisque-ware is pottery which has been fired just tothe point where the clay particles are sintered - it's very porous and you can make it yourself!