I have two tanks. A 12g and a Marineland Eclipse 3. I am using the light that came with the Eclipse and it reads natural daylight 6W. I have some (what I think is) Java moss, hornwort, and a banana plant growing in this tank. All of the plants are really green and are showing bright colors. The only inhabitants in the eclipse are 3 ghost shrimp and snails. I fertilize weekly with Nutrafin plant grow.
In the 12g, my plants weren't looking so good. They had some brown on them here and there, and the parts of the plants furthest from the light weren't very green. I fertilized weekly with the Nutrafin, did water changes, etc. In this tank are: anacharis, hornwort, 2 banana plants, 2 java ferns, some java moss, hygrophila difformis, a marimo ball, and ludwiga (new). There are snails, one ghost shrimp, four cory schwartzi, and my betta. The bulb that came with my 12g tank was an Aqua Ray 18" for Fresh & Saltwater (F15T8-AR-FS), but wanted to get a different bulb to encourage better plant growth thinking this may be part of the issue. I picked up a GE daylight F15, 700 lumens, 6500K. With the old bulb, the water was almost a bluish tint, and with this new bulb it is a green?
Have I made a good choice with the bulb? Is there a different one I could use to get the brighter/clearer light of the eclipse?