I have an aquamaxx skimmer running on my 30g reef. It has been working wonderfully for about a month, but a few days ago, I added a very small amount of water from another source while adding a new coral (maybe 1/2 a cup max!) to my system along with the coral and the skimmer immediately started overflowing like crazy! This is a hang-on skimmer. So anyway... I ran it for a while, and withing about 30 minutes, it drained 2 gallons of water from my system. I decided to give the skimmer a break for a few days. Today, I tested everything, all good. So I turned it back on... same thing.. it's overflowing clear bubbles at like a gallon every 30 minutes... any ideas? ugh!!! I did disassemble it and made sure there was no blockage or anything like that... still no luck. When I plug the air intake, water level is good as well.