So I just did a ppm test....

2liters RO water = 30ppm
1ml Bio Bizz Fish Mix = 106ppm
1 more ml Bio Bizz Fish Mix = 251 total ppm

The first ml gave me 106ppms and then I added the second ml which added 115ppm.... I was off by 9ppms on my measurements from one to double....

Just wanted to show an example of how ppms can vary even though we are giving the same amount.....

CGI::::::