I have found many asking about using dehumidifier water in your aquarium. Assuming it is a newer dehumidifier, you don't smoke or run incense in the same room as the dehumidifier. according to this article your water is safe to drink. Keep in mind this article is considering human conditions not...
im about to change the layout of my 3 year old setup 90x38x45 cm
old and tired susbtrate and too much organic matter.
going to use as fertilized substrate ada tourmaline,bacter 100 and a mix of equo vigor plus and tropica plant susbtrate + a 5 cm black gravel 2-3 mm