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Discussion Starter · #1 ·
I found one of those vintage adjustable aquarium heaters that I had forgot about for a while, I believe it is 14 years old, as it has the year 2006 printed on the side. I think I used it once but I believe the 50w was too large for the tank it was in, or a malfunction occurred, because I remember switching it out with a new one. That was a while ago and I came across it again. Is it safe to keep around for use, and would it be a bad idea to sell it with a 20 gallon tank I will be selling soon?
 
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