Hey i checked out aquanerd and i noticed hes giving a free halloween giveaway for a CO2 regulator and all u have to do is add a comment on his blog...pretty easy to do for a nice prize.
AquaNerd Giveaway Reef Fanatics CO2 Regulator | AquaNerd
AquaNerd Giveaway Reef Fanatics CO2 Regulator | AquaNerd