Snake oil effect came from old westerns movies...
In the old movies they had traveling doctors going around selling fake medicines with boisterous marketing hype.
I use sphagnum moss packed very light or orchiata bark(classic size). I soak them(seedlings) in 1/4 strength 4-12-4 fertilizer and a small amount of cold pressed seaweed for 30 min or so and let them air dry on paper towel. After potted, I use my standard fertilizer @50 PPM N or 1/4 strength once a week after that with 4-12-4 once a month. Use a bright corner in your house away from direct light add very good air movement(add a fan if needed). Air movement is very important and may solve many problems for you. Doesn't need to be strong just contestant . Humidity is just as important as air movement. 70% or higher is best. I do not use any physan, bleach, alcohol, peroxide, ect. It can do bad things.... I have lost almost every seedling I used physan on.... It drys out the roots and turns them into mush, Pits the leave, and turns them yellow after a month or so. Not to mention that I got zero growth.
Heres a link that may help you out...
Troy Meyers deflasking article