Rooted plants do not appreciate too much movements around their roots. These are indeed not suitable however floating plants and those that attach themselves to decorations are fine.
ya im aware of the filtration and make my own out of an old powerhead and a waterbottle and its really effective the water is crystal clear and the baby swordtails are happy as can be and i think ill use my 20 gallon long for fancy guppies and a breeding pair of bristlenose plecos
Killfish! The perfect fish for small tanks. You can keep a pair or trio in a 2 1/2 even. They breed like rabbits and sell for up to $30/pair. check out the pics at http://www.aka.org/aka/modules/content/?id=2