Sure vodka would be a great choice and certainly cheaper but this is for a 28g nano and I don't believe Vodka would be a good choice for such a small tank also no room to have a delivery system for it which in truth is my biggest deterrent. The Zeozym can be added weekly and I think would just be easier for a nano IMO.
Of course low nutrients is best solution but I have found that nutrient export on these very small tanks (or at least mine) can be tricky and once you have a cyano issue its tough to control. Right now I only have a small problem with it and haven't decided the best course of action. Until I find a product that may help keep it in check more easily I will be reducing feeding and going lights out for a few days.
If thee is someone here is successfully dosing vodka or some other form of organic carbon on a nano sized tank please let me know how your doing it and how its been working for you.
I was very intrigued by the claims of this product. I know I know if it sounds to good to be true it is and thus the reason I was looking for other peoples experience. I found several posts on RC as well as other sites that swear by it but we all know how reliable that is.
Thanks all for the input!