ZEOvit, the popular nutrient control system introduced a new formula for their staple main stay zeovit filter media. In case you aren’t familiar with the ZEOvit system this helps control nutrients while you manually add specific types back into the water column. Some persons call it the ultra low nutrient system which is technically incorrect. What’s new about the new ZEOvit bag besides the fancy new packaging? Korallen-Zucht is saying that the media is now “more powerful” then ever with a “new composition”. We’re not sure if the bags have increased in size/price but you’re welcome to call your favorite ZEOvit retailer and inquire about the new packaging.