Hi,
It looks good so far, and I’m assuming your using a heat pad under the tray? What you really should have on top of the tray is a 7” humidity dome. It keeps the humidity up so the plants don’t dry out too much, which you don’t want them to do, especially when they’re young as it can stung growth.
mill be honest and tell you that in my almost 30 years of growing I’ve never used coco. I prefer organic amended pitting soil. I usually use Sunshine Mix #4, which is avail in compressed bales that mare 6cubes when expanded or
Fox Farm Ocean, though I’ve had insect issues from the soil last time so I went back to sunshine mix. ...but
Foxfarm ocean is a killer soil for cannabis.
place your t5 directly on top of humidity dome. Being it’s coco your probably going to need to start using a very diluted fertilizer, maybe 1/4% as coco doesn’t have fertilizers in it like soil. With soil you don’t fertilize for first 2-4 weeks of the plants life. You’d be better off to ask someone who used coco for advice on fertilizing them.
...what strain are they, and are they autos , fems, or regs? What type of lights and setup do you have for after germination?
do you have it setup and running? You should run your new system a couple weeks to get kinks out and temp/humidity levels where you want them prior to adding your plants.
I just spent a little over $6,500 to upgrade my entire setup, and I ran my 3 tents over a month before I started adding plants. ...and even then I only put in a couple as a “test” run before using my more expensive strains.