The algae colony has the ability to raise the biomass of the body it is on. Water levels will drop because these algae live in the water. Levels beyond V are only reached through events.
"During the early phases of terraforming, large-scale plantlife will have a much harder time surviving on an alien planet. The biosphere will need to be built up from smaller lifeforms, beginning with patches of genetically targeted algae placed in exposed gardens on the surface. From there humble beginnings, you can build paradise. " - Ingame Description
Beginner Mode differs in time needed compared to Normal Mode. The Culture modifiers accounts to the total Biomass, Population, Credits, Research Time and/or Construction Time gained/lost for the buildings/research.
- Alga Colony, Algae Colony and Algal Colony are often confused each other.