During the building period, I had started to grow algae using the simple method of a water bottle, algae food & the sun. This proved successful in the UK but even more successful in Greece where the sun lasted for longer during the day. I started with a culture sent to me by the Algae Depot of 50ml and after a few days I reached 3 x 100ml travel bottles.
I then proceeded to continue to grow that culture until I eventually reached the required 5.5 Liters after approximately 2 weeks. The algae was growing exponentially quicker due to the limited bottle room I would provide along with excellent sun exposure and feeding regime.