I just wanted to comment on the RO/DI water that was mentioned. I use 100% RO water in all my tanks but my cichlid tank because it allows me to set the general hardness to whatever I prefer (medum soft). Just buy some RO Right from petwarehouse.com and you will have more control over your water parameters. The big benefit is there is no phosphate or heavy metals in RO water. Mixing it with tap water is another solution, especially if your tapwater is relatively hard. My local tap water is like liquid rock with high phosphate levels, so RO is the perfect solution. It is definately not a requirement though.
Two 1 GA desktops, a 5 gallon, a 2.5 gallon, a 10 gallon, a 20 gallon, a 25 gallon, and two 75 gallon tanks, all planted.
I am an expert on algae, so ask me if you have questions. I know how to grow it, just not how to get rid of it.