why vodka?

[reefD]

i have done some research and now want a consensus. why vodka. ? i understand what happens. isnt the sugar the source of food to spark the bacteria? so why not just sugar? also anyone know of the exact chemical situation that makes the use of vodka not a joke. i have friend who say thatdosing vodka is stupid and has no benefit .hes says" its a myth. no one would do that." thanks for the info guys!

[The Cardinal]

It´s certainly not a myth and it has been used for a long time, not least in Germany. The carbon source, be it sugar, ethanol, vinegar etc, promotes the growth of certain bacteria. The bacteria effectively consume nitrates and phosphates from the water.

Be sure to follow the instructions and dosing before giving it a try as it can deplete oxygen from the system if not done correctly. I would not recommend the method if you already have very low nutrient levels. You should always use a skimmer when using a carbon source to ensure oxygenation and removal of excessive bacteria. The bacteria also becomes food for several species of corals.

Use the search engine here on RC to find out more.

/Peter

[rkcca]

[drunken slur] WHY NOT? [/drunken slur]

[dendro982]

Both are the source of organic carbon, used for a feeding bacteria, and then skimming off their bodies - nutrient export, just like any other.

Some people used it with great success, I tried both and all I got - the slimed surfaces in the tank after vodka and cloudy water after sugar... In both cases oversized skimmers, ASMs.

Who knows - may be the skimmer should be much better.