Join Date: Jun 2015
Location: Victoria, BC, Canada
I water both house plants and outdoor ornamentals with the aquarium water.
If you are concerned about salts building up in your house plants, once in a while use regular tap water to water your potted plants thoroughly. I rarely do this but when I do, I just bring the pot to the sink, water away until it drips out the bottom freely for a few seconds. You can usually see salt accumulation at the soil line (where the soil meets the pot, there's a crust on the pot). Sometimes I just scrape it off.
TBH once I stopped using commercial ferts regularly on my house plants I have not had to do this.
Daisy Mae V
According to my husband, I have a habit of jumping right in!