Water Check
Is your water safe?
Enter your test-kit numbers and get a plain-English read on what's healthy, what isn't, and exactly how to fix it. Enter only what you have — no account needed.
Your reading
Temperature & pH
The basics — comfort and acidity.
°F
Safe 66–86°F · most like 74–80
Safe 6.0–8.4 · ideal varies by fish
The nitrogen cycle
Fish waste turns to ammonia, then nitrite, then nitrate. This is where most trouble shows up.
ppm
Should be 0
ppm
Should be 0
ppm
Keep under 20
Hardness
How mineral-rich your water is, and how stable your pH stays.
dGH
Soft 4–8, hard 8–12
dKH
3+ keeps pH steady
Enter a reading to begin
Fill in at least one value above and your results appear here.