2*65 is a lot of light. You would have to look into co2 for sure and a lot of dosing. That would be what we call a high tech tank. 1*65w should be plenty for you.
WOW! Thank you all for the help! I am planning for co2. I picked up this:Hi Mike
Orbit's are excellent fixtures, IMO. I have the 30" 2x65w model like you linked and the 20" 2x40w model too. The dual actinic bulb needs to be replaced though.
I replaced the front dual actinic bulb with a 65w Coralife square pin Colormax/6700K bulb. http://www.bigalsonline.com/BigAlsU...coralifecolormax6700k65wpowercompactlampsqpin
If you don't want to use the bulb that I mentioned; you can use another 65w dual daylight 6700K/10,000K square pin PC in the front. That's the same bulb as the rear. There are also 6700K, 8800K and 10,000K 55w/65w square pin bulbs that will work as well.
You'll have 4.5 wpg with this fixture over your 29g. You need a very good CO2 system (pressurized is better than DIY) and a good fert dosing plan.
The fixture has three lamp cords and two on/off switches for the front and rear bulbs.
You can stagger your lighting by adding a noon burst. Here's an example. You can run the front bulb (it has the fan) for 6 to 12 hours and run the rear bulb in the middle of the lighting cycle for 2 to 4 hours. That will give you nice growth. It will help to minimize the algae as well.
I checked the pricing at DrsFosterSmith.com and BigAlsOnline.com. PetSolutions.com has the best listed price, but Big Al's will beat that price by 5% or about $8.40 cheaper. http://www.bigalsonline.com/BigAlsU...302x65wattpowercompactstriplightw2lunarlights
Any recommendations? Decent priced preferably... I can't do the ADA systems. Its nice but waaaaaaaaaay expensive.With 2x65w I think you might want to look into pressurized co2.