Hi I have a 29 gallon Bio Cube that is 20"L x 20.75"W x 19.25"H. I have 2 36watt fluorescent 16" lights, and i've had it for 2 years now and its a freshwater aquarium with live plants. Some of the plants I had were not doing well so I took them out of the aquariam. I have space for 1 large background plant to go in the left back corner and a few middleground and foreground plants. I am not sure which plants are good for my aquarium that look nice and if you have any suggestions I would be happy to hear them.