it would be nice to know this since the bottle does not say anything about this....
Straight away.
it can vary, between 1 year and 7.
Algae reproduce by means of spores. The oceans are always releasing these spore into the air, and any exposed water is going to have spores fall into it, which can then grow into algae, as long as there is sunlight and some mineral content to provide the algae with the necessary ingredients for growth.
In the long run algae does.
The black marlin can swim 80 miles an hour.
you already know
Algae can cover any surface; walls, rocks, etc, as long as it is under water.
Algae can grow back in as soon as 5 hrs.
Yellow algae, also known as mustard algae, is a type of algae that commonly grows in swimming pools. It appears as yellow or mustard-colored patches or streaks on pool surfaces, walls, or steps. It can be recognized by its slimy texture and ability to cling to surfaces, as well as its resistance to brushing and chlorine treatment.
The fresh water green algae (charales), can reach up to 120 cm long. Hope that helps.
Here's a quick tip on chemically cleaning or killing the algae living in the sand in a sand filter. The next time you shock your swimming pool, poor the shock or bleach in the skimmer. This will provide a very high level of chlorine in the filter for a very short period of time. Long enough to kill the stubborn algae living in the filter but not long enough to hurt your plumbing.
Spirogyra is a type of colonial green algae. They are unicellular and arrange themselves in long filaments.
Ordinary ground water? A few days can see the algae form.