Quote:
Originally Posted by taricha
...if the flow is high enough that concentration of dinos in the water column is evenly mixed between sump and tank, then why don't people's skimmers just solve the problem? dinos are terrible swimmers and live covered in mucus, how can they avoid being skimmed?
If UV is knocking back population of dinos that skimming isn't, I assumed it was because UV gets in the tank, and sees more dinos.
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UV doesn't leak into the tank. That would be dangerous to the animals, and to the people when handling the unit.
Skimming is best at removing amphipathic compounds:
http://reefkeeping.com/issues/2006-08/rhf/index.php
Dinoflagellates are too large to be taken up reliably by a skimmer. It's more like trying to skim a fish than trying to skim a single protein molecule, from the point of view of size, in some sense. Some might go into the skimmate, but dinoflagellates are highly mobile.