my vertex is the quiest thing i have ever heard. and it is a fraking beast! i don't think that dc pump technology is tried and true. i want my skimmer to skim , and skim all the time. my alpha cone 250 has only been running two days and is producing heavy foam head. even after feeding or putting hands in the tank, it does not stop skimming or producing foam. quality is beyond great. pump is super quite.
They skim, 1.5 weeks set to skim very dry:

I wouldn't exactly call it a slouch.


