Mephisto & Night Owl-FS, FS X FC, WIZF4

Uh these pics are from day 18. So far the plants look better than the previous two grows, barely. The forum stomper (unpictured) was stunted pretty bad due to the initial stem growing in with a major bend in it. It is short and bushy and I'm just gonna ride it out because its my last forum stomper seed, and I don't want to waste it. I have been watering maybe twice a week. I think overwatering was an issue with past grows. I added a tiny bit of calmag to the most recent watering and will try to make sure these ladies are getting enough of that. Just flipped the light schedule to 18/6 due to a build up of heat in my grow environment (venting into the same room i'm pulling air from but the room is a poorly sealed garage). I think my temps are too high and my humidity is too low. If anyone has tips, let me know!