| | Re: planted aquarium discus substrate
I have Turface in my Discus tank. Mine do not eat off the bottom. Turface is not vacuumable without making a LOT of cloudy water. I just barely touch the top of it to pick up debris. This works without clouding the water.
I have sand, 3M Colorquartz and Eco Complete in other tanks, and they are all about the same for cleaning. I can do a pretty good job just barely touching the top of the substrate.
3M Colorquartz is the heaviest, and will tolerate deeper vacuuming better than sand, so if this is the particle size you want, look at the 3M web site. This product will not hold fertilizer, though. Essentially you are planting in very fine gravel or coarse sand.
EC would be a good Discus substrate, or Flourite. Either one is dense enough to hold the debris on the surface.