<a href=showthread.php?s=&postid=13434556#post13434556 target=_blank>Originally posted</a> by Tang Salad
First off a confession: I've never used vodka. I've used PolypLabs, and while they both work on the same principal and I'm confident either will work for you, I can't give you specific vodka dosing instructions. (But...IIRC the starting does for vodka is about .15-.3mL/25-gallon every day when lights are on. Wait for confirmation on this.)
If you can spring $120 for the PL, it may be simpler and faster. The PL system comes with a vodka-like carbon source, along with bottled bacteria. Whether this bacteria is totally necessary is still debated, but it worked very well for me. And no, I don't work for them.
No matter which method you choose, you MUST remove all macroalgae from the refugium, or just take fuge offline. Carbon dosing will suck (nearly) every last bit of NO3/PO4 from the water. You don't want to deal with your refugium algae turning white. Remember the goal is No Algae Anywhere, including the fuge.
And get your skimmer running in top form. Skim wet, skim heavy. The bacterial films that the carbon feeds need to be skimmed out. Get in the habit of daily turkey bastings of the LR., as they will gather more detritus/clear slime than ever before.
Do all this and you'll have that stuff dead and gone in under 6 weeks. And if you don't, I'll send you a chisel myself! :lol: