Foxtail ?

It could be a number of reasons but I think it could be bloom boosters late in flower can often cause slight foxtail in your buds, yours isn't too bad man 🤙🤙🌱

Some genetics just grow like that. But it can also be caused be lights being too close/too powerful or being too far.

Another reason foxtailing can happen is by using bloom boosters to long. Massive bloom formulation will cause this if you use it to long into flower. Usually if it is from light, you will see bleaching and canoeing, towards the top leaves, if their to warm from the light as well. All other answers are correct as well.

@DRWU_357 To be honest that does not look too badly foxtailed mate usually it is caused from stress from issues including heat , low humidity or intense light but with strains that have haze in them it is not that unusual to see a bit of fox tail happening at the end of the grow

Light leak at certain stage or still bothering, overexcess of nitrogen, too powerful lights, some phenotype or even strains created that way, too late harvest. That's what I had and understood personally. Think light power and nitrogen is your answer. All the Best !