Great thread! I have been lurking for some time, but now I would like some input from you guys. What are people using for nutrient addition while dosing vodka?
I have been dosing vodka for just over 6 months now on my 180 gallon mostly SPS tank with a light to moderate fish load. I have been very pleased with the results. Before starting my nitrates and PO4 where out of control. I followed the advice from the previous thread and went up to 40 ml/day before my nutrients started decreasing. I have been giving a maintenance dose of 20 ml/day for several months now.
I believe that I have achieved an ULNS with PO4 varying between 0.01 and 0.00 (hanna) and nitrates <2 (salifert). I have observed great improvements in coloration and growth in my SPS. In short, very happy with the vodka.
However, lately I have seen some adverse and unsightly effects. My coraline first stopped growing and now has almost completely died out. My zoanthids have stopped growing, shrunk, and two varieties have even disappeared.

I have also seen an increase in cyano and an absurd proliferation of asterina stars. I literally scrape a hundred or more off my glass on a weekly basis (anyone else seen this asterina proliferation with vodka?). Moreover, some of my SPS are too pale for my liking and the purples will not hold color. I have concluded that my system is nutrient starved.
I do not wish to stop dosing vodka because I am convinced that it has yielded the incredible growth rate and coloration shift I have seen. But, I need to mitigate the side effects to some degree. I have decreased the vodka dose to 10 ml/day (even skipping a few days) for one month now, but the side effects are all still present. Nutrient additions are the next solution I wish to try (unless anyone has a better idea).

I may or may not concurrently decrease the vodka dose even further. Here are the products I have considered:
Concentrated amino acids (Zeo, elos, brightwell aquatics, etc)
Reef Booster (Prodibio)
Heavier, more frequent feedings, possibly including: Oyster feast, roti feast, Rod's, homemade blend, papone type blend (maybe not good choice b/c of the sugar), mysis, cyclopes
?Other
I am at a lose on where to start. What have you tried with or without success? Is there any consensus on the best nutrient additive to use with vodka?