Quote:
Originally Posted by Skimmer King
Dude if you love your tank so much get that temp gauge out of there. seriously man, you are like me and love your reef. its has mercury in that vial  |
Highly unlikely that thermometer uses mercury, might still find a mercury thermometer in certain applications but any hobby grade glass thermometer will be alcohol filled. Easy to tell the difference, mercury is silver and metallic with a large bubble of it on the bottom, anything else would be alcohol.