Lighting isnt cheap, but as minnnt said you could buy some clip ons, a couple would do, for now.. or build a box with a tube in it, you need a starter unit and some mdf..
Well my grandad is a carpenter so I'm gonna get him to build me a little lift up cabinet for my filter etc and a lid with stuff built in for lighting so thats all good. What would I need? A ballast, starter unit and tubes and wires?
The starter has wires with end caps which you plug the tube into (bought seperately). It is the ballast lol
Look here > http/www.ebay.co.uk/itm/Hagen-Glo-Tube-Light-Controller-1x20W-/260708943893?pt=UK_Pet_Supplies_Reptiles_Spiders_Insects&hash=item3cb376c815
Thats just a T8 20W one, if you search Hagen Glo Controller in eBay there's T5s and different wattages etc
Paint the inside of your box white for more reflection if you want...
You can buy the tubes from a DIY shop like B&Q Hanny - they are the same thing, just without the ridiculous mark up! the expensive bit is the starter unit, second hand is the way to go but there's stiff competition...