Planted Tank Guru
Join Date: Feb 2010
Location: Newbury Park, CA
I ran a 50 gallon tank with 6xT12s over it for over a year back in the previous century and was very happy with the extremely green jungle I had going. Tried out DIY CO2 and was completely sold in a couple weeks. The short fuzzy green algae that covered the healthy plant leaves didn't grow as well and the plants exploded like I hadn't seen before. Try it, you can always give it up if you don't like it and dim your lights instead.
Later I figured out how to use the other macro nutrients and I am better at growing plants now. You might try getting a hold of the dry salts used in estimative index type fertilizing too. They all go together - plants need light, water, carbon, nitrogen, phosphorus, potassium, sulfur, iron, magnesium, calcium and a multitude of minor elements for best growth. Lots is in the water used, some is in the substrate, some comes from fish poop but if you are driving your plants with lots of light and carbon then you probably need NPK+micros as well.