0 ppm

So I went to my local saltwater aquarium store and I got some RODI water in my seven gallon container, and when I got home to test it with my meter it reads 150 PPM. I also have some distilled water that I bought yesterday and tested that and it reads 0 PPM so I know my meter is not broken. I'm...

hello all I am new to reef2reef and I’m having a little trouble, I am dealing with some pesky, what I’m thinking is either Dino's or Calothrix. I’ve been trying to get nutrient levels up but can’t seem to. Can’t even keep Cheato alive which I’m assuming with a new-ish tank this is going to be a...