Day 57: watered with 2.5 l water + Plagron Alga Bloom + Plant Succes Orca.
Day 59: watered with 1.5 l water + Plagron Alga Bloom + Plant Succes Orca.
Day 61: watered with 2.0 l water + Plagron Alga Bloom + Plant Succes Orca.
Day 63: watered with 2.5 l water + Plagron Alga Bloom + Plant Succes Orca.
Flowering is proceeding splendidly. On day 63 I examined the trichomes under the microscope (I am unable to post photographs): they are still transparent. I believe, however, that within about ten days it will be time to harvest: at the next watering I will start washing the roots.
@CanuckTaughtMe,
thanks for the vote of confidence, but I don't think I'm a good example: it's the first time I've reached the fourth week of cultivation and I'm making a lot of mistakes...