Additives--which brand, ect

[tanker]

I have a 100 gal that has been up graded. It has 220watts of PC lights. I add CO2 but not a lot--do not have a monitor yet (think it is very low because PH is high (7.8). Will be getting a monitor and regulator soon.

What additives will I need?? and from which comp-- Seachem or Kent??

(PS--Plantbrain: Posted wrong, I have only 220 watts of light not 440).

[djlen]

For a tank that size you might want to look into dosing the raw fertilizers(K2SO4/KCl, KNO3,KH2PO4 etc.) rather than using the prepared stuff from manufacturers. It gets expensive using them.
See the 'sticky' at the top of the plant page for the info. on that.
I use Seachem's Flourish for traces. Don't get the Flourish Trace.
It is a watered down version.
If you are injecting by pressurized CO2, you can check your PPM by referring to the pH/kH table or calculator here:
http://www.csd.net/~cgadd/aqua/art_plant_co2chart.htm#fauna

Len