Before you worry about the fish, don't, there is no fish. I broke a mercury filled thermometer and the silver globs went all over my desk, and possibly carpet. A piece flew into the fish tank. I emptied out the water, dug up the gravel and sure enough there was a few blobs of it at the bottom. I tried to get it out, most of it. Can't be sure. It's in the gravel as well (I've sieved through it twice now and found some). Great.
Am I going to have to buy a brand new bloody fish tank? How much is toxic to a fish?
And yes it is definitely mercury, this is not a fish tank specific thermometer, it is a scientific thermometer.
Am I going to have to buy a brand new bloody fish tank? How much is toxic to a fish?
And yes it is definitely mercury, this is not a fish tank specific thermometer, it is a scientific thermometer.