to skim or not to skim

[tytown]

I ran skimmer less on a 55g QT for a few months thinking I didn't need it. I wasn't happy with the way two (separate)fish went through it taking 6 weeks each and still mediocre going to display.
Added me good ol skimmer for that tank and I have so much more oxygenation and my fish are far more lively. Have an orange shoulder that will be going in display after only being in QT for 3 weeks because he's so much stronger.
Have mp40 in 55g QT on max for the record. Still with skimmer seemed better
Go skimmer or go home.