Round fan leaves

First time cloning have 5 clones under 400w hps 18/6 using some 7in1 nutreint soil only feeding water daily or every second day 4 are looking healthy an happy but one is looking deformed and just looks strange , still growing well with no sign of stunting or growth shock seems to be out growing the rest but any ideas why it's gone all retardish any help would be appreciated, will put pics when I figure out how upload

 

Nah I took cutting off 2 weeks b4 changing to 600hps an putting on 12/12 had in veg 60 days

 

Used no rooting hormones just propergated in water , just Abit of a head scratcher as the other 4 look fine

 

My foot and a tv, had to take out for pics coz was during lights off, unsure of what your asking about but there's a little yellowing on leaf edges that I cut to promote root growth instead of photosynthesis during propergating, not too worried about that just these strange deformed leaves