That will work fine, actually giving you much more light than you need. If you run them at about 900 mAmps, with them sitting right on top of the tank, no optics, you should get about 40 micromols of PAR. But, running the current up beyond 2 amps gives you over 100 micromols, which is way too much for the plants you mentioned. Even 40 micromols might be a problem if you don't use DIY CO2. At about 700 mAmps you would get around 30 micromols, which is high for low light.
You could reduce the number of LEDs to 4, spacing them at 3.75 inches apart, and get about 35 micromols at about 1.4 amps. Finding a LED driver that will work with 4 LEDs might be a problem.