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Re: [APD] re: High water evaporation in a planted aquarium

Inded it is so.

Consider: In _Ecology of the Planted Aquarium_ Diana
Walstad talks about going months without water changes,
jsut a slight toppping off for evaporation.

Of course 5 gallons a day, even on a large tank is a hefty
evap rate.

But setups are possible where water changes are not the
order of the day, or week or month. :-)

Scott H.
--- David Aiken <daiken at iprimus_com.au> wrote:
> Water changes are essential to replace some elements
> absorbed by the 
> plants, but they're also essential to help keep the
> overall mineral and 
> salt content of the water relatively stable and in the
> freshwater 
> ranges that we like. It probably would take a few decades
> or centuries 
> of top ups only, without water changes, to get your tank
> to the point 
> where it approximated a brackish water or marine tank but
> in theory at 
> least you could do it.

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