Help leafs clawing and dry during flower

[Chrism]

Hi everyone it's me again in day 44 of flower. Everything seemed be going well but noticed in last week the biggest plant seemed to of stopped growing now noticed tonight that the leafs are clawing and going a funny colour and are really dry to the touch does anyone know what is up with it?

 

[Ninjadogma]

Check tent temperature and soil aeration. I've had plants show hooking when I reused soil and didn't mix more fresh perlite in. Your buds do look nice though!

 

[Chrism]

Check tent temperature and soil aeration. I've had plants show hooking when I reused soil and didn't mix more fresh perlite in. Your buds do look nice though!

Some of them are also going purple

 

[RoadKillSkunkHunt]

Some of them are also going purple

Sounds more like senesence and normal color change patterns. This is normal as the plant gets toward end of life. If your plants are healthy like the pictures suggest they are, its nothing to worry about. What I see is beautiful flowers almost ready to harvest.

 

[Week4Bytch]

What RoadKill said and maybe just reacting to the air and lights, especially if it's just the top looking like this. Nice grow, looking "normal" great actually for an indoor grow. What pheno is this, looks familiar.