So is it plain vinagar or you have to mix it with water ot somethng else?

thanks for all the suggestions.


"Victor Martinez" wrote in message
...
D P wrote:
I wanted to know what's the best way to clean Old used aquarum. It has
some white marks, i don't know of what. looks like salt.

Hard water deposits, probably calcium salts.
Use a vinegar solution and wash throughly.

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