So when does the algae show up?

I am attempting a 90g low light low tech planted aquarium (1 wpg)- fish and
plant lists and photos at
http://www.cearbhaill.com/aquarium.htm .
This aquarium was set-up on 6/12- a little over a month ago.

Despite being told that I must have CO2, and that the entire Flourish line
would be way too expensive- Flourish is the route I have chosen.
I am dosing as per Seachem's chart.

Things are going exceedingly well- each and every plant has grown *way*
beyond my expectations. After only one month I am having to prune nearly
weekly just to keep things neat.

As of yet I have no algae- none.
In fact- I have no algae to the point that I am beginning to worry about my
algae eating friends. Of course I supplement them with veggies and algae
wafers, but feel that a bit of real algae would be nice for them.

I keep reading about everyones trials with algae and am wondering how long
until the plague hits me?
Is it possible that I have somehow hit on a light/nutrient balance already?
Or am I feeling successful a bit too soon?

--
Toni
http://www.cearbhaill.com/aquarium.htm