So my cycle seems to have stalled at high nitrates. Help please? :D

[Myka]

Originally Posted by Cal_stir

Problem with vodka dosing is that it requires more po4 than no3 to work, and if you don't have enough of one or the other available then the process stops and you are just getting the fish drunk.
Fish are very tolerant to no3, 100 ppm doesn't hurt them.

This is correct. I have a fish only system that nitrate is consistently 60-80 ppm. Nitrate bothers inverts (inc coral) much more than fish.

Vodka dosing did not a thing for my SPS tank, although it did manage to brown the corals out really well. From chats with Randy Holmes-Farley, I think vinegar is the better solution, especially when combined with lime water (kalkwasser) dosing.