إيهايم سوبسترات برو

I was skeptical about sintered glass media, but the surface area on these little rings really pulled the ammonia readings down within a week. My canister filter feels more balanced now, and the water hasn’t been this clear in months.

My nitrates finally dropped below 10 ppm after switching to this sintered glass media — the porosity is clearly doing its job. Setup was easy, just rinsed and added to my canister filter.

The sintered glass texture feels substantial, and after two weeks my water parameters have never looked steadier. It’s one less thing to worry about with a busy schedule, and the media rinses clean without breaking apart.