I recently set up my 25G with 55w of florescent lighting with a DIY CO2 thing made of a 2L bottle, sugar and yeast. The air line goes into the intake of my HOB filter and then gets mixed in to the water very well. The ferts I use is leaf zone from petsmart. I have a huge variety of plants and they are all doing well. Some have even grown an inch in 1 week. The light set me back 75$ (got it from the discontinued shelf).
Hope this helps.