I do a 3 gal
/week water change with RO
water from a filter set up in my basement. I haven't lost a living thing in the 2 years due to poor tank conditions. (I actually think the firefish jumped thru a hole in the eggcrate & my dog ate it. It was there one day & gone the next)
test results from this past Friday
nitrate undetectable by test kit- thanks to HOB
I know ph, calcium, dkh
may be considered on the low side by some but it has been this way for 2 years.