Corals over CrackView Badges
R2R Secret Santa 2020
Rocky Mountain ReefersBuild Thread Contributor
Ok so then hook up a pump of some sort to push water down through the tubes?Bahahaha...
Normal undergravel pulls the water down through the substrate. Causes all your detritus and stuff to accumulate under the plastic.
Instead you push the water down the tubes and it comes up through the substrate. Keeps detritus suspended so that your HOB filter can effectively remove it.