Physan 20 for "de-algae-ing" plants?

Wow! That Physan 20 must be good for just about any use, including smelly feet! Seriously, those instructions would fit just about as well if it were just ordinary bleach, sodium hypochlorite, NaClO. I suspect that is what it is.

Algae spores are most likely everywhere, in the air, in the soil, in most water, etc. I doubt that it is possible to keep them out of our aquarium water. Whaat we can do is keep the conditiions in the aquarium such that the algae spores won't start growing. We can also kill any active algae on plants and other articles in the aquarium, using bleach, peroxide or Excel. Based on what Tom has been saying I am planning to use a spray bottle of Excel and water to spray any plant cuttings before I set them out in a new aquarium setup. Hardscape and filter plumbing in the tank I will just wash with a bleach/water mixture. As far as I know this is the best way to do this. The problem is to avoid being too lazy to do this, and I have been known to be that lazy.