Temp requirements?

[Fishnut]

I'm trying to grow Cabomba in my CPD tank (the bowl shaped tank that I won a couple GA's ago...I think it's about 15 gallons.  So far it's not going well.  The PH is 6.5...maybe a bit lower and the temp is about 69 degrees.  I have Flora Base substrate and moderate lighting.  I can't remember how many watts per gallon but there's a dual T5 24" fixture above the tank...one is a daylight bulb, the other is a plant bulb.  I can check when I get home later. 

Here's my thoughts...either it's too cold or there's not enough fish poop accumulating in the tank to properly nourish the plants.  Or is there another potential issue?

[ottawa_fry22]

Yes the temp is way too cold for the Camboma to flourish.  This plant can actually do well in with discus temp.  It needs alot of light.  Its 2 watts per gallon.  15 gallon is pretty small for that type of plant to do well.  It generally needs co2 to do very well.  I would have went with Hornwort or an Anubias for that setup.  Hope this helps a little.