Yellow in center 2 weeks old

Hey everybody, I'm just wanting to verify that this may be a Cal-Mag deficiency. Blue Dream, started yellowing and one leaf is "crimping" upwards. This is my first grow, hoping to start journal for help.

Light: Hydroplanet™ 600w Air Cooled Tube Hood with dimmable ballast(MH Veg, HPS Flow)
Medium: Hydroton and Rapid Rooters
Pot size:Four - Five Gallon buckets
Exhaust: iPower 6 Inch 442 CFM Duct Inline Fan with 6" Carbon Filter
Fans: Two small clip fans on LOW setting
Airpump: E G Danner 40518 Supreme Hydroponic Air Pump, 7 watt (Dimmable) MAX
Air stones: Pawfly Air stones 6" (One in each bucket)
Nutes: General Hydroponics Flora Grow, Bloom, Micro Combo, Cal-Mag

Gave 2 TSP of Cal-Mag added 1.5 TSP after noticing
.5 TSP of GH Micro-Flo-Bloom this might be wrong was using the grow chart from grroweedeasy as a guide, cutting in half almost.

Temps between 70-85, RH 20-40%

Maybe spray the leaves, instead of putting the cal-mag in the reservoir?

So try spraying with pH'd water? or add Cal-Mag to spray as well?

It looks a little yellow, but some of that might just be because it's new growth. Your other leaves look very healthy, so I'd maybe wait a day to see what happens. Don't panic

Are you hand-watering the rapid routers, until the roots are grown through the net? It's hard to keep the upper hydroton hydrated, and you don't want the upper roots drying out when they're small.

Again, I'd wait a day before doing anything. Let the leaves grow out, and they'll turn greener. You don't want to try fixing a problem that doesn't exist. It's a surefire way to make the problem worse. All us new parents would all hover over our sprouts in the beginning LOL

JSB, it's like I asked and you came through, You're all over this forum, but if something crazy happens I will take all these tips, hope the pictures did justice, my baby had a cough and I thought she was dying The Rooters are taking water from the hydroton, res is 1" below net pot, those bubbles pop super high keeping the rooter damp/moist.

Kaydoo said:

JSB, it's like I asked and you came through, You're all over this forum, but if something crazy happens I will take all these tips, hope the pictures did justice, my baby had a cough and I thought she was dying The Rooters are taking water from the hydroton, res is 1" below net pot, those bubbles pop super high keeping the rooter damp/moist.

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You're treating her just right

Glad you're getting some good info! I'm justa payin' it forward