Is old freshwater aquarium water good for houseplants?
Deneen asked:
I have an established freshwater aquarium. When I do water changes, I want to be frugal and use the water to water my plants. Is this a good idea?
The old aquarium water has nitrates and some nitrites and is Ph balanced. There is also some diluted salts in it.
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March 1st, 2009 at 12:36 pm
This is to appreciate the good habit of being frugal in using water.
On the face of it , there seems to be no harm in using that water to household plants . Could be beneficial !!
March 4th, 2009 at 3:01 pm
Yes it contains ammonia and nitrates from fish waste.
March 5th, 2009 at 12:58 pm
I don’t see why not. You have to think, plants that grow by lakes, etc. deal with ammonia, and salts, especially if there is a large fish population.
March 6th, 2009 at 2:49 pm
I don’t think I would take that chance with my houseplants. They are house plants. Wild animals raised in captivity can’t live in the wild. I would not expect my plants to adjust either.
March 6th, 2009 at 4:17 pm
Sure, as long as you don’t have copper or zinc salts… those tend to be pretty tough on plants at low concentrations.