Trouble shooting help!

6 plants. 1000w MH. ocean forest soil. i dont know the ph im going to go get a tester today. watered with 5-7 ph water every 3-4 days, water is measured so i dont think im overwatering. i feed them with sensigro once a week. 18/6 light cycle. they are aprox. 1.5 months old. the first 3-4 weeks of their life they experienced heat throughout the day of 90-110. but now i installed an a/c in the window and insulated the windows. i keep a side window of the tent open and have a fan blowing in, pulling air in from the a/c because i have the a/c vent pointed toward the fan... so now the the temps are 74-80 during the day and 65-68 at night. the plants are only 1.5ft tall and maybe 8in - 1ft wide.. i feel they are extremely stunted.. what should i do? any help is apreciated
 
Top