Randy Holmes-Farley
Reef Chemist
View BadgesStaff member
Super Moderator
Excellence Award
Expert Contributor
Article Contributor
R2R Research
My Tank Thread
- Joined
- Sep 5, 2014
- Messages
- 67,626
- Reaction score
- 64,084
Well, I often use it for freshwater and do near-total water changes for QT/hospital tanks. I'm not sure what the minimum detection level of chlorine using the color wheel is but I wouldn't be confident it's below 0.05 mg/L. And I wouldn't bet my life that it's below 0.1 mg/L either.
OK, I get that. I'd want a much lower level there too.