Over the past year we've been establishing stock in our new FOWLR tank, giving us the chance to test the water from many of the Lower Mainland LFS (generally from their fish only tanks).
The SG range has been from 1.021 to 1.026. The 1.026 was a pleasant surprise, since that's the target SG of our systems.
What I've found more interesting is the range in nitrate levels, ranging from 20 to 160 ppm
