I have a 16 gal nuvo and I just hooked up the skimmer yesterday. Finally got it figured out, used the brackets from the stock lights (I'm using my own fixture) to raise the skimmer up. But I'm noticing a LOT of micro bubbles floating in the tank now. I read somewhere that microbubbled will last for 7-14 days. Anyone else have experience with the skimmer and have this problem? It's the desktop skimmer for 100$ that goes with the 16