Tom, it's such a relief to read Your posts!!

I experimented with doses of way over 60 ppm KNO3 and more then 5 ppm TMG in FW, with no ill effects, but with all the myths, missinformation and scary propaganda from reef folks I really became scared to dose more then just a speck of KNO3 and just a couple of drops of TMG in my saltwater tank.

And I mean I dont even have one single coral to worry about, but just thought that the nitrogen-argument about bad calcification could be applied to macroalgae as well. Thank You for clearing that out. Because I dont have Your experience and educational background I still fall into the trap that I tend to believe more what other people (reefers) say/imply then what my own eyes see.

Anyway - thanks a lot for busting some mythbubbles!!