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Old 01-25-2005, 12:32 PM   #1
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Thermometer Accuracy - Liquid Crytal or Traditional?

I was just wondering what kind of thermometer people find more accurate and reliable:

The Liquid Crystal 'stick on the outside' one that changes color


The traditional thermometer that you stick in the tank and float or attach with a suction cup?

I have BOTH in my 40 SW and 90 FW. The Liquid Crystal thermometer on both read 2 degree colder than the traditional.

Both keep a constant temp reading...which is most important, but I am treating my FW aquarium with the Heat/Salt method...and i NEED to get the temp up to 86...I am just not sure which thermometer to trust!



90 Gallon Fresh Water Planted w/ CO2:
7 Brilliant Rasbora, 6 Harlequin Rasboras, 3 Dwarf Neon Rainbows, 1 Red Tailed Shark, 2 American Flag Fish, 4 Skunk Botia Loaches

40 Gallon Breeder Salt Water: 4 inch DSB (2/3 Agaramax & 1/3 Sea Flor), Bak Pak 2R Skimmer w/ BBX, 2 x JBJ PHs, Coralife Lunar Aqualight (2x96w), 30lb Base Rock and 40lbs of Live Rock.
Inhabitants: Purple Firefish, Pygmy Angel, Lawmower Blenny, 2 Cleaner Shrimp, 1 Peppermint Shrimp, Pistol Shrimp(HH), 1 Emerald Crabs, 3 Porcelin Crabs(HH), varying amounts and varieties of hermit and snails.

3 Gallon Eclipse:
1 Goldfish (won free at a fair...cost $50 in equipment)
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Old 01-25-2005, 12:39 PM   #2
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actually, i'd spend a couple more bucks and get one of those Coralife digital thermometers. they are more accurate, easy to read, and go to 10th's of a degree.

Former advisor and planted tank geek...life's moved on though.
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Old 01-25-2005, 06:56 PM   #3
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I use a digital thermometer but I also keep a glass one in my fuge. Both read exactly the same so I would say the glass one's are pretty accurate. The problem is you have to go out of your way to read it which could spell disaster if you are not looking at it at least once or twice a day.
46g SW, 65 lbs Fiji LR, 4" Aragamax DSB, Coralife 2X96w CF, CPR Bakpak II, CPR Aquafuge 12 w/ 2x9 Coralife Mini Aqualight, 4 Maxijet 600's, PCI 200W Titanium Heater, 2 Blue Green Chromis, 1 Gold Bar Maroon Clown, 1 Purple-Stripe Dottyback, Finger Leather, Trumpets, Rose Coral Open-Brain, Pagoda Cup, Xenia, Star Polyps, Yellow Polyps, Various Mushrooms, Toadstool Leather, 12 Astraea, 10 Nassarius, 4 Bumble Bee, 6 Cerith Snails, 12 Red Tip Hermits.
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Old 01-25-2005, 07:04 PM   #4
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digital here
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Old 01-25-2005, 07:11 PM   #5
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you would think thick glass on bigger tanks would not be as acurate with a stick on type. digitals are cheep anyway if u have to buy one
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