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Floating thermometers

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Floating thermometers

Post by Sandman1969 on Thu Oct 22, 2015 1:24 pm

Is there enough liquid in these to kill fish in a 125 gallon tank?
I had one in my koi/goldfish tank & noticed earlier it was standing in the sand. There's a hairline crack at the top & maybe half the liquid as come out.
Should I be worried or no?

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Re: Floating thermometers

Post by CAAIndie on Thu Oct 22, 2015 1:32 pm

I haven't had to deal with this personally, but I'm quite sure that most thermometers aquariums use red dyed alcohol as the liquid. I expect it should be fine, but I would consider a water change or two.

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Re: Floating thermometers

Post by Sandman1969 on Thu Oct 22, 2015 1:35 pm

I mean the clear liquid within the tube, not the red stuff as that part is still intact.

Now, I have had one or 2 broken into pieces in my shark tank before and they were fine. even with the shards of glass sitting on the bottom.


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Re: Floating thermometers

Post by Suprd71 on Thu Oct 22, 2015 2:09 pm

No harm in the liquid, red or clear. Mercury hasnt been used in a long time. You may want to go with a dif type? I prefer the digital, probe inside, monitor outside. Dont get the real cheapies, but you dont need the pricey ones either. Mid range, 15 bucks or so perform well.
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Re: Floating thermometers

Post by Sandman1969 on Thu Oct 22, 2015 2:17 pm

I had the floater before I got my hands on a digital one from ebay (first purchase ever on there).
I just never took it out til I saw it on the bottom.


Side note: looking at your sig, I wanted to get an African cichlid. But they don't like koi.

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Re: Floating thermometers

Post by Suprd71 on Thu Oct 22, 2015 4:35 pm

I did Africans once, not my thing. Fish in my sig is a female Festae, true Red Terror, South American.
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Re: Floating thermometers

Post by GaryE on Thu Oct 22, 2015 6:23 pm

A red terror and a goldfish - they make horror movies about scenes like that!
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