Perhaps my skimmer or my water or something is different... I'm no expert, as this is my first tank and skimmer (remora), but here's what I think anyway:
First, I have started cleaning my skimmer cup/tower every day. My cyano
problem is under control now. I re-read my skimmer manual and IIRC, I think it says to do this anyway
Second, I get foam within an hour or so. I have the cup set very low.
Third, and most importantly: The whole point of a skimmer isn't to make foam but to get DOC
's out of the tank. Every day I clean a splattering of formerly-D OC's from the inside of the tower, and the inside of the cup.
I don't really pay much attention to my skimmate. It's wet, but who cares? I used to leave the skimmer 1-2 weeks at a shot, just dumping as needed, and my cyano
was out of control
your results of course may vary.