Little Yellow Spots

my plant is in week 4 from seedling and i started to notice little shiny almost water stained looking spots on one of the sun leaves before i feed my plant the new nutrients, the problems seems to continue more yellow spot-age that started to show on some of the lower leaves and one of my little branches off the main stock seems to have wilted and yellow leaves ...this is my first time growing indoors i am using Fox Farm Ocean blend and have only fed it the the veggie nutrients once on Monday and did a flush and transplant to bigger pot Wednesday night ( my plant was to big for the pot it was in so i had to do it, i didn't have soil so i had to wait till now ) The PH is reading 6.8 idk what could be wrong any ideas ????

oh i almost forgot these are the nutrients i used .....

( B.C Boost – 3 tsp (15 ml)
B.C Grow – 1½ tsp (7.5 ml)
Thrive Alive B-1 Red – ½ tsp (2.5 ml)
MagiCal – ½ tsp (2.5 ml)
SugarDaddy – 2 tsp (10 ml)

mixed in a gallon of water

edit: i am using a 400w hps and its 24 inch's away , two fans good vent

Instructions

1. Step 1
   Reduce watering. The most common cause of plant death is not underwatering, it's overwatering. Overwatering smothers roots and deprives the plant of oxygen.
2. Step 2
   Increase fertilizer. Even plants growing in the best potting mix need supplemental nutrients. Nitrogen deficiency causes yellow spots on leaves and is correctable with a basic fertilizer.
3. Step 3
   Repot the plant. When a plant's roots fill a container they begin wrapping around the sides of the pot. The plant is then unable to bring in enough nutrients and often starts to have yellow spots on its leaves. Correct this problem by moving the plant into the next size larger container.
4. Step 4
   Consider moving a plant out of direct sunlight. If the plant is in direct sunlight or has recently been receiving more light than usual, this could be the source of yellow leaf spots.
5. Step 5
   Treat the plant for pests. If nutrient deficiency or sunlight are not the cause of yellow leaf spots, the problem is possibly a pest infestation. Treat the plant with an insecticide made especially for plants. Hosing the plant with water also washes away many troublesome pests.

i just bought a new ph tester and found out my old one was reading everything wrong i was shocked making this discovery for i didnt know this whole time my water and nutrients were to acidic!!!!!! im going to get on this right away thanks for the feedback though i was getting worried this is my first time and im scared of messing it up i want to see them grow all the wayyyy!

I'd cut those lowest 2 fan leaves off, if i were you. They aren't getting any light down that low, and won't hurt anything if they're gone.

I'm too tired to try and diagnose the spotting issue, and just wanted to add that 2 cents.LOL