Originally Posted by fishyboy
ok don't start goign off on goldfish.. if you aren't smart enough to know they don't belong in such a small tank it's your fault
chances are you know nothing about goldfish so i'm not even going to start
He's just asking for help...you don't have to yell.
Welcome and good to hear you're learning. It is difficult to start out on planted tanks, but it gets easier, speaking from experience. Just take it one step at a time and use common sense (meaning your wallet and bank account) and make the right, best choices now to help you in the long run.
With a 29g tank, you can easily retrofit the existing light with the AH supply kit. With 3.something wpg, you are going to pump a lot of light in there, so the first thing you need to consider is whether you want to do DIY CO2 or pressurized. I had some success with DIY when I had a 29g, but I'm sure you can ask others who will say life is a lot easier with a pressurized system (I think Colin has a similar setup as you). BUT, DIY is possible, if you can get it to inject into your filter (what type do you have?), or use a power reactor (search google for DIY CO2 power reactor). You will definitly need CO2 and patience once you get your lights pumped up.
Also consider substrate. Again, use the search function and check on what's been discussed regarding fluorite, laterite, and eco-complete. You'll find even better information this way.
Start making a list of what you want to accomplish with the tank and we can go from there. Most of us are here to help others out. Good luck.