Have a reef Octopus Classic 202 Have a lot of bubbles coming out of it going
into Tank any ideas thx just did a 80 Gal water change this is 180 gal tank
has the skimmer been running ok prior to water change? If it did, it is the water change. It should stop after a short while or you Cs turn the scrubber off for a couple of hours and the it will likely be fine.