If anyone doesn't want plants that are highly demanding for lights, ferts, etc, you may try Cryptocoryne sp., Nymphaea sp., Hygrophila sp., Echinodorus sp., Java ferns, Java moss and anubias. For floating plants, some prefer to be kept in open topped tanks so think twice before you get your plants. Most plants particularly the Pistia stratiotes do not like condesation forming on their leaves and tend to die in the process.