It's hard to tell. I haven't heard of Ich floating around visible in water like that. It could either be small air bubbles (I get some in my tank but not to that extent) and/or planaria (some of the small white stringy things could be planaria which are harmless but a sign you are overfeeding and under-cleaning). It's a bit hard to tell in the video. Do you vacuum the substrate regularly and do weekly water changes? Do you have a lot of bubbles going into the tank from water pouring from filters and/or air stones?
You could try turning off your filter(s) and then your air stone for a while and see if it goes away (not long lol just a half hour or so and keep the filter media wet if need be). You could also try a larger water change and cleaning the substrate with a vacuum to suck up any extra food/waste that may be there.