Vodka is a carbon source that can feed denitrifying bacteria to aid in denitrification. Not everything is known about it and there is no way to test levels of carbon in the system. Overdosing vodka will cause major problems and it is very risky to do in the first place. Ive seen the end result if it a few times and it always ends in problems down the road.
Femm i would highly advise not trying this. It will only cause further problems in your tank. Vodka is used for uncontrollable nitrates to reduce them. Your nitrates are not uncontrollable. But it never hurts to learn new things. Just thought id warn you ahead of time.
A new safer way of carbon dosing is biopellets. The pellets consume nitrate so to speak. And no guess work in dosing. Also is a natural process not involving such risky additives such as vodka that cant be removed from the system easily like biopellets.
Only down fall to biopellets is they often work too well. They can completely consume all nitrates and more importantly phosphates. However corals actually need a small level of phosphates to grow and survive.
29g Mixed Reef, 150w 14k Phoenix MH w/ Moonlights, Reef Octopus BH1000 HOB Skimmer, Ecotech Vortech MP10es, ReefKeeper Lite (Plus), PH Probe, Temp Probe, ATO, Carbon/GFO Reactor.