Having known that nitrate makes zooanthellae in corals prolifferate and at reeeely high concentrations fish find it harder to breathe, I was interested to read today that growth can be cut by as much as 50%(stony corals) by concentrations up to 40ppm, thats as high as they tested it....
Thats news to me and interesting? Yeah OK i bet you all know that .... :rolleyes:
In the tank ive posted a picture of it was over 100ppm..........Things seemed to grow well, posphate was 3ppm with a Salifert kit so it most likely was more....