weird "hairs" on shrimp, illness?

I picked up 10 various neocardinia shrimp about 2 days ago for this 5.5g tank, I didn't qt because the tank is currently empty, usually occupied by my betta that I'm currently treating (in another tank) for what I believe is columnaris.

I haven't had any shrimp deaths so far but I have seen two molts (maybe stress molts?) today I noticed that a few of my shrimp have these little white hairs poking up from that spot in front of their eyes, this guy has it the most visible but 2 or 3 others only have 1 or 2 little hairs. params are all normal (0ammonia/nitrite and between 5-15 nitrates, ph 7.6)

is this fungal? is there something I can do about it without moving the shrimp or ruining the tank/filter? I only have a few live plants, and I currently have enthromycin and kanaplex on hand