Originally Posted by
Ace25
Couple observations just going off the video. The algae doesn't seem that strong judging by how easy you were able to scrape it off. I literally have to sit there and scrape hard over the same spot 20 times with a credit card to get the algae to break free on my screen. My guess is yours is not getting enough light.
To answer your question about the skimmer, that doesn't seem normal to me. On my system that does have a skimmer, the more days that go by between cleanings the more skimmate my skimmer removes, and I believe this is because the more algae in the system the more oils and lipids it will release into the water, which are 2 things a skimmer does a good job at removing. My guess on your system is since the algae is weak, and the 'roots' are not firmly attached to the screen, the algae is doing more dying than growing, which means less oil and lipid production. Again, just guessing going off what I see in the video, in person may be a different story and only you will know exactly how your system is working, so my observations may be wrong.