First indoor grow with LED lights

Seedlings have sprouted and doing well . The blueberry got stuck in the shell, after 2 days I soaked it with a spray bottle and gently pulled off the shell , the skin inside the shell stuck the cotyledon leaves together and proved much harder to remove . It was tense . After a week I started feeding the seedling a light mix of Marinis seaweed juice , they seem to be very happy. I got the other light on and the heat is now at 76 daytime and 71 at night . I am using a Brita filter on my water now , it usually has a ph of around 8 . After the filter the water ph is lowered to 6.8 . So I use less ph down and the filter makes that easy pz . I checked with my PH meter and the results were consistent between filtered and non filtered water. I have decided to set up a 3rd tent in my closet using the Vivosun GrowTent 3x2 S326 with a Vivosun AeroLight Wing AW200SE that uses a 4 inch Vivosun inline fan and controller . Thanks to blackfriday deals on the Vivosun.ca website . I should now have enough room for all these plants .