Planted Tank Guru
Join Date: Sep 2004
Location: Garden City, KS
Do you have an account over at APC? Use the fertilator. It's way better and easier than any of the other calculators I've come across.
[edit: I went ahead and pulled up some numbers for you on the fertilator. It could be adjusted of course, this was just a real quick one. This screenshot doesn't include the addition of your iron chelate, and that would have to be recalculated.]