The Planted Tank Forum - View Single Post - Simple DIY Drop Checker (V2 is Alive! 3/31)
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Old 03-26-2012, 07:43 PM   #52
Planted Tank Enthusiast
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Join Date: Oct 2011
Location: Bellevue, WA
Posts: 857

I like the fluval drop check. It seems to have a fairly low internal volume with a large water contact area:

It also comes with an all-in-one indicator solution for lazy people like me.
My 40 gallon breeder (and 20 gallon long):
My 10 gallon with PAR30 LED:
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