You are sterilizing the media even though it should be inert and pretty close to sterile as it is since it is coco coir & Perlite and not a growing media that is made up of natural mineral & organic materials. It should be OK to use just the way it comes out of the bag as long as nothing happened to contaminate the coco.
Do not worry about the tap water. Use it as it comes out of the tap since the chlorine is what sterilizes the water for you. A bit of chlorine will not harm the plant and whatever is there will evaporate off within a day anyway. Make sure the pots and any other growing containers are clean and sterile if you want.
Set up another pot, maybe two, just like you have been using up to now. Fill them up to within a 1/2 inch or so of the rim. Plant two tomato seeds in the pot. If trying with two pots then use 2 seeds in each. See if the tomato seeds sprout. The normal time will be 5 to 10 days. If they sprout let them grow until the 3rd set of true leaves opens up. Watch to see if there is any problem with the plants looking like they are catching 'damping off'.
If you are in the US it might be hard to find tomato seeds since the planting season is over until late next winter. You can go to local hardware stores and ask them and they might still have some left over tomato seeds in the backroom. I am suggesting tomato seeds because they will sprout in a short time, not as fast as Cannabis seeds, but fast enough. Also the stem will be about the same thickness so easy enough to see if the pinching is taking place.
Make sure the fan is blowing air just enough to gently go over the surface of the media in each pot.
Thank you very much for your time.
First of all let me introduce myself.
I am from India and have been growing cannabis for the past 2-3 years.
I know that coco sourced in the United States is always sold to standards, as you mentioned in a previous message.
But the coco found in India is processed in sea water and has high salt content.(TDS 3000ppm)
So I have to wash it thoroughly till the TDS is less than 100.
Then comes buffering.
And in the buffering process it has to be kept in the nutrient solution for a long time, so the chances of infections are high, so I have to sterilize it properly.
When I grew organically in the past, there were no such problems.
This is my first time in Coco and I'm learning a lot. The technology is not yet developed here in India as it is in the United States.
Sometimes even if a simple TDS meter is asked for in the local market, they dont even know what it is.
I really liked the solution you gave.
And as I've heard, where tomatoes can grow, cannabis can grow.
Tomato seeds are easily available here.
Now tomatoes will be my guinea pigs before planting cannabis again.
I will definitely try this experiment.
I will make further updates on this thread as the experiment progresses.
I think someday I will be successful.
Happy Growing
Cheers from india .