i need some help my leaves are dieing thay are curling on the sides and have a cupple of light brown spots here is my set up

i have it in coco soil i water it once a day and it has a envirolite 125w grow lamp 6400k it is about 3-4 inches away the lamp has a fan on it to keep it cool the temp is 70 deg fahrenheit and the ph is 7 do any one know what the prob could be i cant put any pics on at the mo as im in the middle of moving house
first-timer Reviewed by first-timer on . my leaves are dieing help!!!!! i need some help my leaves are dieing thay are curling on the sides and have a cupple of light brown spots here is my set up i have it in coco soil i water it once a day and it has a envirolite 125w grow lamp 6400k it is about 3-4 inches away the lamp has a fan on it to keep it cool the temp is 70 deg fahrenheit and the ph is 7 do any one know what the prob could be i cant put any pics on at the mo as im in the middle of moving house Rating: 5