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I like those purple zoas.
I had Jermey test it last week with his Salifert test and it also came out 25 ppm.
I have been using Salifert to test my nitrates and its been testing pretty high like 25ppm. Well to day I used my API test and it read 0ppm.[img]...
I need to get some salt too.
Soooooo is there any other Waterloo people that want to get together?