Skimmer fine for days now micro bubbles

[JDJP]

I believe it's a reef octopus int-150 and it came to me used with a bubble blaster 2000 and a ball valve between the pump and skimmer.

I've had it for years and it worked fine. Putting it in my new tank so I ran it in a trash can with some vinegar for a couple hours, scrubbed it and rinsed.

Placed it in the new sump and it ran pretty much like normal for a couple days. I check it today and it had stopped bubbling up the neck and is now producing micro bubbles out the overflow.

I understand this is common with break in, but why would it run normal for days then do this? The bubbles in the body even look different than they did.

 

[Mastiffsrule]

Hello and how’s things

Is the tank new or just the sump? Did you feed anything or dose anything before this started? I would let it go for a day or 2 and see if it goes away. If not you may want to make some adjustments to see if it helps.