well i have a marineland 5 gallon tank with just a betta in it and i wanna add some other things to the tank so im just wondering what can i add. i want some thing to clean the gravel/acrylic and some foliage(plants)

im wondering if you would recommend African dwarf frogs of some other invert like ghost shrimp or amano's

the lighting is LED and is 16 watts(I know watts Per gallon doesnt work for led but oh well) it is filtered and heated so what can i add, also include any fish you think might work for the tank the filter is very good and has flow control. I dont mind changing the water often.

So thanks in advance for the help

  im going to include a link to the tank(its the small one since they dont carry the big one anymore) 

http://www.petsmart.com/product/index.jsp?productId=2752385

also heres a video of the fish hes the multicolor one and hes calm

http://www.youtube.com/watch?v=4hZwnoAK2vs