addendum: I just remembered that I have a house plant that can be rooted and even grown in water. I deduced that if plants love nitrates and I have too many putting a cutting in the water column to take out nitrates from there then that's one of my problems taken care of. Why didn't I remember this, I like to water my plants with old aquarium water. For nitrites I'm thinking about a bag of [FONT=Helvetica Neue, Helvetica, Arial, san-serif]zeolite in my power filter to take out the ammonia fuel source. What do you think of this idea?[/FONT]