Planted Tank Guru
Join Date: Feb 2010
Location: Newbury Park, CA
Agree, put the taller plants to the rear of the tank. Hornwort might as well be used as a floater, it will reach the surface in a couple days at the most anyway and looks ugly as it stretches out.
Put the tall plants in groups behind the driftwood and place the wood near the center of the tank offset by a few inches. Symmetry is not usually a good thing when you are going for natural looking. The moss balls go in front but not in a regular line, more on one side than the other and space them at irregular intervals. The dwarf pennywort can be a foreground that is planted and trimmed but would also look great just wandering where it will.
I like to pull the stems out, lay the pretty tops together and trim across the bottoms to make even bunches and plant close together, about 1 leaf length apart if you don't have many stems, 1/2" apart if you have a good amount of stems.
Lose the airpump but make sure there is a good ripple on the water's surface for good oxygenation. Ripples good, actual water splashing not so good when you want to conserve CO2. If you must use it put it on a timer and use at night.