batch water mixing???

[monza]

I mix two Brute (sp?) garbage cans about 30g each and use Reef Crystals. I just tested both after about four days, one was heavily aerated and both had power heads running the whole time.
Both batches nitrates at zero. I do get a brown scum on my one can that I always have water mixing in.

I’ve used mixed aerated water that had been sitting around after four weeks…next time I do that I’ll measure nitrates.

Mine did read "some" nitrates enough to move it off zero but not enough to move to the next number, which I think is 20

That’s whacked… 0 and then 20 on your nitrate scale makes no sense. What is the measurement?

All this fuss on measuring, I don’t get. Take your water volume of make up water what ever it is, add your salt until you have the correct SG. Remember how much salt that was…repeat. Really simple! 1g or 100g whats the difference?

Dave