The tank I would like to move it to, and keep it on permanently, has 25ppm NO3.
The tank it is currently on, has 75ppm. It shouldn't have gotten that high but ... I guess I've been more or less neglecting that tank lately.
Ooops, well anyhow I've fixed it's skimmer, I'll kick off a nice big water change soon, but thought I would take advantage of the high nitrates to see if my little experiment here will work. If it knocks the number down from that high a starting point then we know that this is working.