Is it worrisome foxtailing?
Genetic Foxtailing: If it occurs evenly across the entire plant (especially on Sativa/Haze strains), it is completely harmless and natural. No action is needed!
Stress-Induced Foxtailing: If it only appears on the top buds closest to the light, it is a response to excessive heat or light intensity.
What to do: Check your canopy temperatures and light distance. If the tops are getting baked (above 28°C) or hit with too many photons, dim your fixture by 10% or hang it 5–10 cm higher. When checking trichomes for harvest, look at the main body of the bud, as the new "fox towers" will continuously pump out fresh, clear capitates.