BioCube Coralife Protein Skimmer w/Replacement Airstone

Woks well, gets the job done and fits well in the back chamber of my 29g biocube.

I had to purchase a new valve to get it to run efficiently. The valve it comes with seems to run high or low, no happy middle.

I love this product it was shipped very fast and works great I would highly recommend this product because it was packaged right ! Only down side is you have to empty it everyday

Does not work