I am fallow until the 20th of may....... my problem at the moment is not only is my tank fallow, but it is also in the middle of fluconazol treatment for bryopsis. normally I would reduce my vodka dose from 1.4 ml to .7. But I am concerned about dying bryopsis increasing P04. I am going to maintain vodka dosing at 1.4 and roll it back slowly after the bryopsis is gone. But, that looks like it is going to take 2 doses. That's 1 month of dosing vodka at a rate that keeps me at 0 trate and 0 P04. I am thinking stump remover may be the ticket. At least temporarily until I can reduce my vodka dose. However, that seems silly to remove nitrates one way and add them back another.