u/DirtyMud

Been growing a couple plants that have been doing really well. I keep them indoors under an old fish tank light.

A few days ago I added some plant food liquid and then my plants did this. I water twice a week with water from a fish tank that is high in nitrogen. Could too much nitrogen from the watering and the plant food cause this?

Is it reversible or are my plants just going to die?

Thanks for any help