ebb n flow problems?Nirvana AK48, MasterKush, NorthernLights, Ice, Luna Haze, Spunky

• Place: Closet dimensions 4.5ft wide 2.5ft deep 6.5ft high
• Medium: Hydroton
• Nutrients: GH3 bloom, micro, grow
• Additives: GH FloraNectar, Epsom Salt, H202
• Average pH: roughly 5.3-5.9
• Average Room Temp.: Day(80-85) Night (70)
• Flood Cycles: 5min fill,5min drain, 5min fill, 5min drain- every 3 hours, once lights off.
• Light Cycle: 18/6, 5pm-11am

• Meter: Liquid Ph Tester kit soon to be digital +-(0.1)
• Process: Ebb and Flow, Flood and Drain (2x4 table)
• Net Potsize: 8 - 3.5" net pots
• Method: LST (low Stress Training) Considering ScrOG
• Hood: 6" Air cooled tube reflector double parabolic arc white
• Light: 400W MH for Vegatative and or 400W HPS for Flowering (currently HPS but was MH)
• Ventilation: 8" Oscillating fan, 2 - 5" corner fans, 250cfm 6" Duct blower fan for light
Strains

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1. AK-48 (fem.) has spots the worst with pale light green blotches.
2. Master Kush (fem.)
3. Northern Lights (fem.)
4. 2-Ice
5. 2-Luna Haze has mild spots on both
6. Spunky

Also, 3 of the other plants seem to have light green pale spots with little dots in them that look like dead tissue. also it just started on only on plant on one leaf there is a bunch of little orange spots on the leaf. wtf are they from. nothings happened to cause this from what i can tell. no major dead give aways of what the problem could have started from. the pale green spotted plants are at all different ends of the table. nothern lights has it the worst, and luna haze. the plants are roughly 3 weeks into veg and are starting to form a decent size root mass and plant size. this is the time where they are about to start growing drastically. So just recently i started to notice the plants lower 2 large fan leaves turning over all slightly lighter shade of green and then having light green blotches with little dots in the middle that might be dead tissue.Its weird because only the lower 2 leaves have this problem.. they look like something may have took a bite out of that area. kinda like a mini crater. there is no visible causes like bugs. the spots tend to be in the center of the leaf and not so much around the outside. I just did a res change last night. its only been 5 days since this problem started. It doesn't seem to be spreading, thank god. what do you guys think? Also one of them, the northern lights feminized has a little amount of purple looking spots at the end of the 2 lower fan leaves looking a bit like lock out. i did a rez change and i checked and fixed the pH.

so in the past 2 days my feminized Northern Lights is showing purplish black spots on the leaves. i have no idea what it is. i just did a res change. can anyone tell me whats happening?

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