Wow! I just reread what I wrote and even I didn't understand it, but you picked up on the fact that I was talking about the cyano. I went ahead and did what you said, but the stuff was so thick, it plugged up my Baster. My husband is an Engineer and told me to sweep it up with a fork. When I did, it just peeled back. I was actually able to pick some of it up with my fingers. I also found one of my snails, alive and well. The problem, as always, is that the tank is full of blowing sand. It is slowly clearing but I can see enough to tell that everything is coated white again. I moved the power head halfway down the glass to blow off some of the sand from the rocks. It's on night lights now so I can't see much now. And I have adjusted the timer to 8 hours of light. And not only do I not have a spare HOB, but there's no way to mount one with the sump on the back and a hinged complete hood. I do have carbon in the trickle filter. If it's not clear by morning, I will add a carbon pad. Also, the skimmer acted like it was going to produce earlier, but so far, no go.