8 week old clones, curling leaves/yellowing/spotting ???

Hello,

I have some clones that i took from the round that is in flower now. started with 32. soil gnats invaded... down to 8 now to make a long story short. Recently some of the leaves have curled under themselves and after a day or so discolored green then yellow then eventually fell off. Some info on the clones and the environment.

*8 weeks old
*Clones in 6x6x8 square pots
*Clones potted in Happy frog Ph 6.5
*Clones are under a 8 tube 435 watt t5 floro fixture for veg
*R/O water 003 ppm before 5 drops Cl/Mg per gallon watering (every 2-3 days)
*temps are consistently 65-75
*strain: unknown indica

Clones have received 1 round of "Age Old Grow" 12-6-6 and 1 round of clone "tea" direct recipe from "True living organics" by the rev throughout their life.

Some Pics of what I am working with. Thanks!

Bump, 137 views? no input? put the joints down!!

looks like a bad mag def and some calcium maybe try some epsom salts.

RO water has rapid ph swings and no micros. mix 1/2 tap 1/2 ro water. add 1tsp of hydogen peroxide to a gallon. good luck

I already use Cal/Mag with my watering, would this essentially do the same as epsom salts?

jessica d said:

RO water has rapid ph swings and no micros. mix 1/2 tap 1/2 ro water. add 1tsp of hydogen peroxide to a gallon. good luck

Click to expand...

I can't mix tap and r/o my tap water is softened and that's a NONO. My soil already gets Micros from the TLO style of growing I am doing. I prob should have mentioned I am growing all organic in the first post. Adding H202 wont hurt the microlife in my soil?

nevermind if it's softened but can't you get it before the softener? RO water straight just swings ph bad. makes the plants lockout micros.

the H202 helps the plants. try my method with 1 plant. also transplant it to a little bit bigger pot to check roots at same time.

Wait a wk and watch i have done it myself over the last 10yrs countless times.

the h202 will kill any larve from fungus gnats and also when you get gnats they clog soil. the h202 aerates the soil

jessica d said:

the h202 will kill any larve from fungus gnats and also when you get gnats they clog soil. the h202 aerates the soil

Click to expand...

True but it also kills micro organisms and benificial bacteria rendering the soil useless, H202 is for hydro not soil.

I already use Cal/Mag with my watering,

Click to expand...

Waste of money and time, your problem is Mg not from lack of it but wrong ph in turn locking it out, make sure all waterings/feeds are 6.5 to avoid these issues.

lol i am all organic and been doing it for 20yrs. funny i got healthy plants. to top it i use good soil and straight water whole grow.