kno3

[rekn]

where do you get it from and how much do you dose to say a 12g tank?

[graveyardworm]

KNO3 can be purchased as stump remover at many hardware stores. Some basic mixing instructions can be found in this (http://www.reefcentral.com/forums/showthread.php?s=&threadid=760973) thread. Dosing will depend on how much nitrate you wish to maintain and your uptake rates.