[N0Ob]

im trying to start a planted tank in my 33g, i kinda just jumped into it with not much knowlege iv got some plants planted and i bought a 24" aqua glo 20w light which later i found out isnt enough WPG. so then i got some info from my local fish store when i was trying to get my lighting sorted out. instead of buying a 119.00 fixture to house 2 30w bulbs? which i need cuz my tank is a starter kit tank with only room for 1 bulb.they said to just buy CO2 because it made their plants grow like crazy(so much they had to throw them out) with no light but the store light. so i bought the CO2 for half the price and now have the 20W aqua glo light and the CO2 thats rated for a 20G tank set up. will this setup work at all? or will my plants all die? i plan on buying a new fixture in a month or so that will hold 2 lights,whats the cheapest route to go? where can i buy the stuff i need i mean do i need to go to my LFS or can i go to homedepot? thanks allot i need help BAD!