Aquatic Gardens Stainless Steel Thermometer

I got this from PetCo nearby, and chose it from among the options there because:

1) it's easy to read

2) has both F and C readings (I want my 7-yo daughter to learn about both scales)

3) i like the idea of a thermometer that sits in the water instead of one that's stuck to the outside of the glass

I have an Aqueon 20-gallon aquarium, and I was worried when I bought it that it wouldn't fit on the lip of the tank. I was right! The lip of the tank, with its black plastic trim, is too wide for this thermometer to hang there.

However, I found the perfect place to put it, using the black plastic lid that came with the aquarium. The back corner of the lid has a slot cut out of it (I imagine for routing a power cable), and this thermometer hangs perfectly through that slot.

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