Thanks Tntfish, this is a question I was going to ask as well. XP3 and Aquaclear... are these power filters or cannister filters? Is one filter enough for a 55 planted or is it safer to have two?
Speaking of equipment, I read in a guide book (that has proven rather suspect) that it is better to have two heaters going at once in a tank so that one doesnt have to work so hard it kills itself.