Just built this for a friend...

I could make a version that does forward and reverse, just not sure why you'd want reverse?

The CNC has come in very handy for fish stuff, it's an amazing machine!

I was thinking of using something like this that goes down below at the rear of the cabinet for condensation. So forward/reverse would allow either air to blow in and around or suck air out like an exhaust fan. That's why I mentioned both ways.
 
Black plexi cut on my CNC machine, PWM controller for fans, two 120mm 3000rpm fans, 12v 2amp power supply and a power switch. I have Amazon links for most if anyone wants them.
most certainly would love links!
 

HOW MUCH DOES A FISH’S FEEDING REQUIREMENTS AFFECT YOUR STOCKING DECISIONS?

  • A lot! - I avoid fish that require frequent or specialized feeding

    Votes: 16 32.7%
  • Quite a bit, but an automatic feeder can change my answer

    Votes: 6 12.2%
  • It depends on whether my nutrient export can handle it

    Votes: 7 14.3%
  • It depends on how badly I want the fish

    Votes: 11 22.4%
  • Not much. I’m willing to adjust my routine

    Votes: 9 18.4%
  • Not at all. Feeding demands don’t limit my stocking choices

    Votes: 8 16.3%
  • I usually learn about the demanding feeding schedule after buying the fish!

    Votes: 2 4.1%
  • I haven’t really considered this before

    Votes: 4 8.2%
  • Something else (see my comments in the thread)

    Votes: 1 2.0%
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