Its been set up for about 2 months now, most of the plants look pretty good except for a few which are developing brown spots(lack of iron?), im using 2.2wpg, which i think is acceptable because of the small depth of the tank.
It looks a bit cluttered(sp) but i kind of like the look of spreading out traditional background plants more evenly.
iv got alot of spare stuff in my garage so iv been thinking about adding a co2 canister, atm using yeast.
I don't think it looks cluttered at all. That is why I like planted tanks so much. You can arrange them to likes and tastes.
I use one of them Hagen CO2 kits that are designed for smaller tanks. It is the smae as a DIY setup, but without the hassle of having to build one. I have read in the planted forum that people have figured out how to make their own yeast mixture. With work I travel a lot so I still use the mix that you buy at a lfs. This is so my wife can keep an eye on the output while I'm gone.