mineral oil fishtank

Solution
would mineral oil be the same as liquid paraffin?

and no i dont mean the paraffin you use in greenhouse heaters etc obviously thats flammable


not that kind of paraffin--you are thinking of what would be called kerosene in the usa

liquid paraffin is a highly refined mineral oil used for cosmetics and for medical purposes

 

p4nz3rm4d

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I cant help on the local supplier info, but mineral water (AKA deionized water) will also work. Try a local car battery shop - mine always have some cans for sale. Another idea is to approach a biological facility of sorts to find their supplier. Most labs and some schools have mineral oil/water.
 

p4nz3rm4d

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I mentioned it merely as a proof of concept. Impurities would build up over time, resulting in conduction, but it would not happen instantly.