a 5g kit?? in all honesty the 10g kits are probably cheaper!! you shoudl be able to get a 10g for under $35 with a heater, filter, a net... and a hood. i think thats what i paid for my last one anyway.
a 10g can hold quite a bit actually. a whole school (6 or so) of neons, i wuld start out with only 3 guppies (2 females and 1 male) because they will breed and you dont want so many that you have to take all your first babies back to the store.
there are some other interesting fish that are commonly found.
you could do a betta and a few neons.
some common fish you DONT want...
do not get a pleco. there isnt a pleco that stays small enough to live in a 10g!
no angel fish in anythign smaller than 55g. they get really tall... um... do some research on their adult size. www.liveaquaria.com
has some great and reliable fish profiles though some of their tank sizes err on the side of caution.
im heading to bed. hope that helps!!
Chris- Husband, 04/30/77
Cailyn- Daughter, 07/05/99
Jeffrey- Son, 03/24/06
Alex- Son, 03/25/09
Mister- Black LabX, M, 08/06(?)
The Shadow Stalker- Gray Tux DSH, M, 04/04
The Mighty Hunter- Black Tux DSH, M, 04/04
Baby Girl- Tabby DMH, F, 12/03(?)
Frances- Tortie, DSH, F, 2007(?)