First grow. 2 Banana Kush - or not!

I only foiund this site in week 11. No worries, will start a new one for the Gorilla Glue whaich will be attampt number 2. So this week for attempt number one, let me introduce Lefty and Righty. They both cam from seeds that were ordered from the same place at the same time and should have been Banana Kush Autos. Well, I think one is and one isn't. They had a rough start. I had a herb propagator thing with a little LED light. They strung out and it wasn't until week 4 that I added some cheapass red/blue grow LEDs on a stick. Week 5 I bout the tent, week 6 the spider farmer light. No matter, I am pleased so far with the results. Lefty is small but very healthy and green, she is dying now, but slowly. Water intake has dropped to <0.6l per day. Her buds at the top at least, are almost ready to harvest, plenty of milky trichomes and mostly brown pistils. Her lower buds are at least a week behind. I'm probably going to be brave and remove the top first, as I'm not a fan of sleepy highs. Righty is a dilemma. First I don't know what she is. Second, she is dying fast. Leaves yellowing and brown spots, halved water intake over the last week from 1.5 to around 0.7 l/d . Some of the sugar leaves are also showing some browning. 80% of pistils are white, buds seem to still be fattening, trichomes are clear. If her health gets worse, I'll need to harvest early I think. ???