tinfoil barbs

Hi Guys, Just a quick question wondering if anyone has kept tinfoil barbs with pothos roots dangling into the tank? Will they munch on the pothos roots?

I have a 125 gallon tank with a mostly bottom dwelling stock. The LFS just got a large shipment of red fin tin foils and red hooks which I can't decide which to get a small school of. I know they need to be in groups of about 3-5 and get large fast but I have the room. I also have a Mono Sebae...

I added 3 red bellied Pacu into my fish tank with the tinfoil barbs question:does pacu nip or bite larger fish than them?? My tinfoil barbs are getting injured i dont know why 2 pacus are fine because they are smaller compared to my 2 tinfoils and 1 pacu seems to be nipping my tinfoils because...