Skimmer overflowing

I came home today and my skimmer was overflowing. What would cause this? I had it dialed in nicely. I was checking it every day and was getting about 1/4 cup of dark skimmate a day. I left this morning and it was a little more than half full. I was gonna clean it out when I got home and it was overflowing lol. I don't think the sump level changed cuz the water in the ato reservoir didnt go down much. It is a Euro Reef RS type skimmer...anyone?

 

Did you add anything to the tank as far as supplements?

 

No I havent added anything in over a week

 

must have over fed it ? cut the air inlet or water inlet feed flow down you have it foaming to wet and not dry enough ..

 

Sorry guys, figured it out. The power went out today. I didn't realize it cuz all the clocks in the house were still set. Then I noticed my alarm clock was blinking. We had some rain today for the first time in two months so it makes sense now..Fwewww. And no water on the floor. Sump design is good! lol