Simple lighting question

[erc2995]

I have a 20 gallon tall its been well established for 3 yrs i ordered some aponogeton natans and some brazilian pennywort as i read these are easy to grow and do not require much light.. I also bought a new "sunlight" bulb for my stock hood light, its a f15/ t8 bulb
The above listed plants are the only plants i am going to have is my light enough or did i just waste my time ans money?

 

[FreshyFresh]

Low light plants should do OK with a standard T8 fluorescent hood. I think they recommend you keep the light on 8-10hrs a day.

 

[exhumed07]

i belive they should be good. i run a high light dirt tank also 20 gallons. i would suggest looking into that. i had plants fail time and time again in the past. i started my dirt tank last fall and it is going gang busters. no ferts to worry about. i do add flourish excel for a carbon suppliment. i would say if u want to upgrade the lighting i got a dual t5ho fixture from zoomed off amazon for 60 bucks. the 2 bulbs are 24 watts each giving the tank 2.5 watts per gallon ish.