Square1 Ocean Fruit and friends

End of week 2 beginning of week 3 the plants were doing well but now we’re seeing some nutrient lockout “we think” there is what looks like nitrogen toxicity with the curled tips and the discoloration of the leaves meaning mag deficiency /calcium .. today I flushed with 5.8-6.0 ph RO water then fed a little feed that at 940 ppm and 6.0 ph really hoping things turn around as of now not seeing any hermies thank god ! The lights were turned up to 70% power and the plants are just about done with their stretch ! The baby buds are looking ok now super bad problems yet . I’m doing this grow all automated so I’m only available to be hands on abojt 2 times a week which is something I’m not used too. Hopefully in the next week we start seeing the plants bouncing back to life ! If you guys could help out and lmk what you think is wrong with the plants when it comes to the discoloration and curled tips please let me know! Temp is 73 during the day 67-68 at night and humidity is between 43-48%