well today i finally bought all the equipment i think that i need...but i cant help thinking that i have forgotten something

here is a list of all i have bought:
(And before you ask i do know about the
nitrogen cycle)
1x 14 galon tank + hood
1x heater
1x filter
1x Fluorescent light tube thingy
A water testing kit
A bottle of dechlorinator
A bottle of filter starter
Cleaning things: glass cleaner, hose, bucket (thankyou robz)
Some tropical fish food + sinking food
Some gravel
And some ornaments
have i missed anything vital
and i also may have forgotten to wirte it down im thinking of the top of my head.
Freddie