I have a standard 29 that is currently stocked with two false percs, a GBTA that recently split, hammer coral, caulastrea, various mushrooms and a healthy zoa colony. I have about 30 pounds of live rock with a 1.5" CC (yuck, I know) sand bed. I feed the fish regularly twice a day with either Prime Reef, mysis or Hikari Marine S. I feed the GBTAs a cube of mysis split between the two of them every other day, and spot feed my corals twice a week. The tank has been running a little over a year, and I've been on this feeding routine for about 6 months. I began dosing vodka about 4 weeks ago (maybe two weeks before my clam died?). At the start I was getting nitrate readings of 5-10ppm (im guessing here, API test kit and the color looks slightly lighter than 10ppm but slightly darker than 0ppm). Phostphates have always read 0. I began with .12ml of vodka per day (as per these instructions). I derived that number from a total water volume of 33.5 gallons, rounded down for ease. After 3 days, I doubled the dose to .24 and continued for another 4 days when I added .5ml each week for two weeks, bringing the dose up to 1.24. I did not increase my dose the past week as I feel 1.24ml is already fairly large for a tank my size (based on the experience of others, anyway) and I'm not sure how much more I should be increasing. Since I began dosing, I have noticed a marked decrease in the amount of algae growing on the walls of the tank. I can go 2-3 days without scrubbing the walls as opposed to doing it every day prior to dosing. My phosphates have remained at 0. My nitrates, on the other hand, have risen slightly to 10-20ppm (again, kinda hard to read the color). I'm not sure if this is related to the death of my clam (pyramid snails, could they be starving and causing the spike?) or if there's something else amiss. I should also mention that my nitrates were reading 5-10ppm the day before the death of my clam, and 10-20ppm with the next test I did three days later. Anyway, should I begin to see nitrates fall soon? Is there something entirely askew with the increase in nitrates? Am I feeding too heavily, or am I just being impatient?