Pests??

I’m concerned the dust I keep finding on my calathea rattlesnake is thrips or something. I have been wiping the leaves clean consistently, I just changed its medium to fresh spag. It’s been putting out new leaves, some seem damaged but I got this as a starter “plug” in July. I’m concerned because I have a ton of props and baby plants all in the same place as this plant because of my grow light. Idk what to do. I just repotted and trying to rehab a big monsters that had severe root rot. I’ve got baby Bonnie spider plants I’m trying to save from root rot. I have rubber tree that’s thriving, right next to this guy. I just brought home a ton of cuttings from my grandma that I don’t want to infect.