My plants are dying - indoor

[guilless94]

Hello, i am a indoor grower. My plants are dying and cant find the problem. I have tryied different water alternatives and substrat. My light is led, temperature here is low but inside the indoor dosent get below 10°C/50 F°C ( i know it isnt ideal, but they shouldn die either).
The leaf appear curled and depressed. Plant isnt growing.

The "fungis" that appears in the soil, is trichodermas.
I attached some photos, one of them is the plant when it was healthy
Thanks!

 

[Nate_in_AK]

The fungus seems like a smoking gun to me. Are you allowing the soil to dry fully between waterings?

 

[reggashark420]

mate anything under 20 c ain't good for that plant and your saying it dont go lower than 10c bro that's the reason it looks like that get the temp up to beetween 24 c to 28.5 c and make sure humidity level is also right good luck

 

[M0nStarNuggety]

Too cold and over mothering. Need to get the plant environment in control, proper temps and humidity. And let her do her thing.