Changing my Reservoir today tips on cleaning?

This is my first Hydro run I posted something last night under bubbleponics but nobody answered anything well I didn't even get one response in today's the day I'm going to change it so I will be posting it again on here


I'm running heavy 16 idk if i wana use h202 cuz itll pretty much kill my heavy 16 prime so that would b a waste of my money.. what can i add to my res when i do my res changes should i jus run my entire heavy 16 line alone w nothing else? Or should i add a beneficial if so whixh one? Or which sanatize can i add that wont kill off all.my good bacteria

In my video u can see the brown slime on my bulk heads the stuff at thebottom of the bucket is from not cleaning my hydroton good enough.. its a quick 6 min vid

I never sanitize my buckets.. I just focus on removing any organic matter that built up from the roots, just flush with tap water. There will be some chloramines in the tap water that will persist for a little bit.