The actinic portion of the bulb does nothing for plants, so you essentially have 14 watts over the tank.....low light over a 10g. HC won't have a chance IMO. If you aren't sad about losing money over the plants, I'm not either.
Just thought I'd warn ya. Some people appreciate advice about plants. I'll reserve mine for those people.
The sun is powerful, but so is having strong lighting over a small amount of water.....and having alot of extra nutrients. Thats why algae can be a huge issue when you have alot of light and no co2, one of the reasons co2 is deemed necessary in high light tanks. Algae is in natural bodies of water too, but we don't look at them all the time and care about what they look like, like we do our tanks.
But I could care less if you use co2 or not.
Good luck with the tank.