What size tank are you setting up, Alan, and how many juvies are going in ? - All of those shown in your video ?
Couldn't count them.
Just my preference perhaps, but I would think about doing a less "busy" new tank for the discus - you have a lot of fast- moving dithers in the tank video'd.
An elegant, peaceful tank set-up with PFS, some driftwood or manzanita, and a few well-selected plantings would look great imo. There's a very nice set-up elsewhere on the forum. I'll try to find it and point it out to you.
Can't recall the poster.