Listed briefly, here, in order of importance, are factors that will have an effect on aquatic plant growth. Aquarium water should contain all the essential nutrients in a form that is useable by aquatic plants. A constant supply of critical nutrients should be available. Provide adequate light, perhaps multiple light tubes are required. Light on and off times need to be regular and represent a full day.
Circulation is a big advantage, plants like a current of water.
Aeration though, could be detrimental, expelling carbon dioxide. Provide the correct water parameters. Hardness should be between 40ppm and 150ppm. Salinity should be below 440ppm. Temperature, not critical but more warmth is more grow.