first reef, is tapwater safe in a starter nano?

[Johnny Reefer]

Originally Posted by danny zubot

200 ppm is an unfamiliar measurement for me (as most of us). Does your test have a variety of measurement options? We usually use Meq/L, which might equivilate to ppm some how. But the best used measurement is D/Kh, (degrees of Carbonate hardness) which most people range from 8-12 D/Kh I think.

200ppm x 0.056 = 11.2˚ dKH
200ppm x 0.02 = 4 meq/L

I agree with Danny's range of 8-12 dKH and your's falls within this.

Cheers,