I was wondering what everyone's thoughts are on vodka dosing you tank for nitrate control...I have tried EVERYTHING to get my nitrates to drop from around 30ppm...here are the methods I have done so far... 1. Cut back on my feeding...no result 2. Do regular water changes with RO/DI water (25g a month on a 125g tank)....very little results at first...but next day right back to 30ppm (I have tested the water I am adding and its nitrates are at 0) 3. Blow my rocks off at water changes and every other day with turkey baster...no results 4. I have a 15gallon refugium connected to my sump that has a variety of macro algae that grows well.. no results. 5. I have the biggest AquaC Remora HOB skimmer they sell (with the preskimmer) AND I have a large Skimmer in the sump...both work great..No results. 6. Clean my sponges and everything that may hold nitrates...nothing 7. Took bio-balls out of my trickle sump.....No results 8. I have 4 large power-heads for water movement... 9. Have a reactor FULL of nitrate sponge with slow flow through it..no results Thats all I can think of right now that I have tried...but I think thats quite a lot...I have started a reef..and I want my corals to live...and I know they are sensitive to nitrates...so I'm like at my wits end on what to do to get my nitrates from 30 to 40ppm down to 0....thinkin about Vodka dosing but wanted to get the opinions of others before I do so... Please help..