I have a Reef Octopus Essence S-130 on my 2 month old 75g. It has been working well since the beginning. I've had plenty of instances of it temporarily going crazy due to things added to the tank (e.g. epoxy, etc.) and a few instances where it has seemingly gone dead production-wise for a brief period, usually hours, but nothing that has persisted.
Two days ago, I did 2 things simultaneously to my tank in response to what I feared might have been early signs of ich in my tank. I added a UV sterilizer and I soaked some freeze dried mysis in 1-2 dropperfuls of Selcon for 5 min, added some tank water and dumped it in. I just happened to get them both delivered at the same time so I did them together otherwise there was no connection.
Shortly thereafter, and for 2 solid days since, my skimmer has completely stopped producing foam and is just "boiling" but it's also putting out massive amounts of microbubbles such that it looks like the returns in my tank are dry ice machines pumping out fog. I assumed it would clear up in a matter of hours like these things tend to do, but 2 full days later it's still doing it. Last night I swapped out my carbon hoping that it would pull anything out of the water overnight and settle it down but it seems to be about the same this morning. I've looked at threads on Selcon and it doesn't seem like this is a normal occurrence and I don't know how the UV could have done this minutes after adding it unless it was coated in something (it was brand new and seemed squeaky clean). All of my normal water params have maintained steady state other than ORP has been climbing since I added the carbon yesterday, probably due to cleaning up the water but the skimmer is still behaving the same.
So, in short, my skimmer is producing massive amounts of microbubbles and not producing any foam and my tank is clouded full of bubbles. Any thoughts on what might be doing this and if I am missing anything else? Is there any part of the skimmer that could have gotten clogged or something to create this condition?
Thanks!
Zach