bio blocks

Hey all! I just installed a new Reefer Skimmer 900 on a larg reef tank today and the water level is a bit too high. In the past I've placed skimmers on top of a large bio block to get the height needed for the skimmer to work properly and I love the added benefit of having additional bio media...

Hey guys so I was testing out putting bio blocks in my tank’s back compartment where the skimmer use to be since someone in a different thread recommended I didn’t truly need a skimmer for a 13.5 gallon, I want to add I previously have added live rock to the display, I have the little bag of...