i want to buy the same thermometer for my 20 gallon as my 10 gallon one, but only petland has it and it's all dusty and has tape on it.
http
/www.petlanddiscounts.com/detail.asp?product_id=380878
should i buy it anyway? how old can such a thermometer be until it no longer gives valid readings?
http
/www.petlanddiscounts.com/detail.asp?product_id=380878should i buy it anyway? how old can such a thermometer be until it no longer gives valid readings?