well my girlfriend being the pain in my @$$ she has been for the past 2 yrs.

LOL, cant decide if she wants Blue Rams, or double full red cockatoo cichlids, or orange cockatoo cichlids. Its a 20g L tank. We are going to be using an all sand substrate (as of now unless otherwise advised) in the tank. We want to use quite a few plants around the sides and back corners, but leave the middle and front somewhat open so we can see them and watch them play.
However, we dont know what plants would thrive/live just fine in an all sand substrate with approx, 1.5 watts of light per gallon,(although the tank is right next to a window and can get alot of sunlight if needed or is that bad??)
Please help us out in anyway that you can!!
Thank you!!!