Little Rock, AR tap water
Supplied by Central Arkansas Water. Here's what its water means for your fish.
Disinfectant
Chlorine
Your water is treated with chlorine. It slowly gases off from standing water, and any water conditioner removes it.
Safety for fish and shrimp
Nitrate (NO₃)
Not published yet
We haven't found this number yet. A drop test kit gives you your exact reading.
Chlorine or chloramine at the tap
0–1.5 ppm
Typical 0.9 ppm
At tap levels, chlorine and chloramine are toxic to fish, shrimp and the bacteria in a filter. Water conditioners are made for this range.
Published by your utility: Central Arkansas Water's 2024 water quality report.
Water chemistry
General hardness
17–29 ppm
Typical 23 ppm
Soft. Good for tetras, rasboras and most shrimp. Livebearers, snails and African cichlids prefer harder water.
Published by your utility: Central Arkansas Water's website.
Carbonate hardness (alkalinity)
Not published yet
We haven't found this number yet. A drop test kit gives you your exact reading.
pH
Not published yet
We haven't found this number yet. A drop test kit gives you your exact reading.
- Central Arkansas Water adds phosphate to protect pipes. It can feed algae in tanks without much plant growth.
Who supplies Little Rock, AR
- 2024 water quality report
Central Arkansas Water
Serves all residents · Lake or river water · Chlorine
Our data comes from public records and is still incomplete. Many utilities don't publish every number, so we're adding more all the time. Your city's range is a starting point: testing your own tap is the only way to know exactly what's in it.
Tap water lookup covers US cities only for now. Want to know why it matters? Read our story on tap water.
Compiled by Shoal & Stem from public records. Free to cite with a link.