Everything ive tried isnt working help would be awesome. First Grow

I have a 55 day old Blue Pineapple. I started it with 2 24" t5's and 3 42 watt cfl's. Currently it is under 4 48inch 216watt t5's.
Started from seed.
was fine the first month in top soil with worm castings, Indonesian bat guano, and Mexican bat guano.
the last month i have tried everything thinking its different defiencies. This is my first grow so i wasnt checking the pH at first with tap and rain water. I have now had it at 6.5-6.8pH hoping that it was a lockout problem. it is still getting worse even with proper ph.
Right now i know it is overwatered, I had to flush the roots to start over come here and get some experts advice before it dies.
It is a purple strain and has always had some purple even in its healthy first few weeks of veg and seedling.
I have another plant different strain same height( burnt it like a dumbass by forgetting to put the chain link back on hook). It has done good and continues to do and look good. same conditions, soil, nutes.
What are your suggestions on where i should go from here. She is showing signs of female so id like to try and get her to bounce back if possible without scrapping her.

The camera is showing it a tint more green than it actually is.

It looks to me like there is a lock out and/or a salt build up. That is good that you flushed it out. Did you happen to check the pH and/or PPM of the runoff water? I feel like you are feeding the plants a little much on top of what is already in the soil. Continue to flush, or at least just keep watering only water. Compost tea would be fine as well.

the runoff was around 7.3-7.5 pH. i flushed until i got it down to 6.6. I wish i could check PPMs thats my next paychecks buy. suggestions for compost tea? should i use the guanos i have?

Now you've flushed it, don't feed more than half strength, she looks nute burnt and half drowned, poor thing. Give her time to breathe and she'll be fine.

update..
she is to the point where i need to water her again. i believe i am going to repot it so that i can check the roots.
could heat stress help do this? my temp is around 75 thoughout and spikes midday for 3ish hours at around 82-85
she is looking worse and worse. im getting a tds tester today so im hoping that can help me out. any suggestions or opinions would be appreciated.
is this an its going to get worse before it gets better type of thing and im overthinking it right now.

If those temps are accurate, heat is not your issue...I'd cut away the dead stuff and then water with lite nutes and forget about it...if you spent a month throwing different nutes at her she'll probably need a month to de-stress and return to normal...it won't happen over night now...so be patient...g/l