Sorry don't really have step by steps. But I thought I should share something about algae regarding nano tanks:
November
Couldn't find the right pieces of driftwood so I decided not to aquascape. I just threw everything together to get some stuff growing for my next aquascape. Really old dried up eco-complete (was not used for a year and sat in the sun in the backyard), some rocks, blyxa japonica, l. arcuata, nana petite, HC. Came up with this:
December
I did as much water changes as I could with weekly dosages of nitrate, exel and flourish but it was terrible. I was sooo discouraged that I didn't even take any pictures because it was hell. (So I don't have any proof, but you gotta take my word for it). I had an algae explosion. Got some hairy algae on plants, spot algae, green dust algae. Right before new years I would say I had about 5% visibility because I just couldn't see through the glass anymore. However, I continued the dosage routine but started changing 25% water twice every week rather than 50% once a week.
Mid January
Algae problem began to recede. Glass started clearing up again. By mid-january about 75% of my blyxa died out but the rest of the plants even HC remained alive and in the end it looked like this(you can still see some of the algae on the glass):
Feburary 5
I'm a fairly happy with status of the tank. Ofcourse I'm not fond of the "looks/scape" but that was never really what I was going for. Just trying to keep the plants alive for the scaping adventure sometime soon. All the algae has completely died out and my glass is crystal clear:
The funny thing is I never used anything to scrub the glass of the tank. The algae disappeared on its own as a result of patience and persistence. SO those who have mad/bad/sad algae...don't give up. It took me nearly a month for the whole process.