Testing PO4 after nuking LR rock question

[cvrle1]

Thanks for the info. I was thinking about starting curing/cycling now, but wanted 1st to check PO4 levels. If they come back elevated, I planned on using lanthanum chloride. If they come out fine then I can always add salt, bacteria, etc and start cure process. it will take several months till it is done, but so will my setup, so that would save me time in the end.