They're healthy, but look overwatered. That will begin to be more of a problem if not addressed.
If you really are feeding the whole tent 1gal every 24h (much less each plant), that would explain it.
Good luck and happy harvests =)
@Jaindoh,I water 1 gal PH 5.8 straight water on Wednesday and Nutes about 600ppm and PH 5.8 on Sunday. I take about 20% run off too. I love the perlite good eyes though as I did let them dry up a bit just before I flipped to flower. Thank you! Happy growing to you too