Tunze skimmer 9006 letting out micro bubbles, why
My skimmer was running fine but I had to turn the power off cause I was removing some fishes from my tank so I turned everything off. After I was done I turned my skimmer back on and now it's producing tiny micro bubbles.. Why is that? I've also noticed the form is much less in the cup..
Anyone know why? What should I do? Do I have to wait for it to break again?