The friendliest place on the web for anyone with an interest in aquariums or fish keeping!
If you have answers, please help by responding to the unanswered posts.
Really depends on how you want to aquascape and if you're running a skimmer. You won't need as much if you have a skimmer, but just as much won't hurt. If you're not using a skimmer, at least one lb per gallon.