I use fiberglass screen mesh in mine instead of excelsior. I use a strip about 3 inches wide pressed down into the media so it stays put. Of course the length is shorter than the height of the culture cup.
I tried coffee filter but they often collapsed. If you stop by any window repair business, they would be glad to give you as much scrap screen leftovers as you can use. That's how I get mine...I do windows.I use coffee filters.. much cheaper.
The standard type screens are fiberglass strands coated in plastic. Fiberglass screen has been used for years in viv construction as the top layer of the false bottom. It has also been used extensively in coral reef tank construction. Obviously you would not want to use old fashioned metal screen mesh.I thought of using screens and I decided not to due to a fear of metals or coatings used to protect screens leaching into the fly cultures.
I'm a guy........so I don't own a "loofah" or a "body sponge"........can I give this post the award for random question of the week?Does anyone use loofah's in their FF cultures? If so, how?
This is true Doug. You get a very satisfying lather.Dont hate it till you try it.