Apparently YOU dont know how to use them.
INdoor growing is a whole nother ballgame. I gave you a solution, "pitch em , research and start over". The only way you could save those plants is if you had a 400w or greater at this point. Your current light set up is weaksauce. Your plants are severely burned from nutes, weak in growth momentum due to lack of light, you didnt do any popping/pruning, topping etc etc etc. All things you should be doing for indoor grow canopies. Its a must! When plants get this bad they wont produce as well, therefor you should pitch them and start over bc its a waste of time and space in your grow. Research how to grow indoor cannabis and start fresh. i.e lighting (spectrum, intensity), nutrients ( NPK, soluables you need for flowering etc), plant canopy importance, topping fimming LST, soils w/nutes for certain stages of growth, persticides etc etc etc. When you just jump into growing, and dont do research and dont get the proper equipment you need to grow this is the effect. I'm not going to sugar coat it and lie to you. Hopefully my words will get you off your ass to research ALOT more. GL to you Kelso!
Its not the products that are bad, 9.99x out of 10 its the user