Beware of Fish Tanks.
Hi
This could have gone in pets or Science, but decided to post it here.
The dangers of keeping corals.
http://www.bbc.co.uk/news/uk-england...shire-43558736
Ten landed in hospital after a marine aquarium was cleaned.
A dose of 100 nanograms per kilogram is fatal in humans, (about nine thousandths of a percent of an aspirin tablet) is enough to kill an average man.
The owner must have seriously annoyed his corals to give off enough to affect so many people,it is normally safe enough to touch them or clean the tank wearing rubber gloves,these stop the poison entering the blood through small cuts and abrasions.
My corals have stung me from time to time, but never anything like this.