Skimmer issue

[Gools]

So it use to work, but not anymore? How are you feeding it? Mine shorty has been the best investment ever. It has declined in skimmate, but my tank looks better then ever. I'm going to assume you've taken it apart and completely cleaned it. I had problems with skimmate once, and found coraline bloking the venturi. Once I scraped it off it was back to it's old self. I also take 2 cups of boiling water, and let the venturi hose suck it in once a month. I have never gotten a full container of skimmate if that's what your refering to. Once it gets about an inch of skimmate in it, I take it off and clean out the cup, it fills with such thick sludge, and it slows skimming. And make sure your feed to your skimmer is working proper. I have it gravity fed, and algae forms on the tube in my overflow blocking water from getting in there, and I have to clean it out once in a while. And if you want to sell it. I'll take it and then I'll have 3. LOL