I've tried growing Water Hyacinth indoors twice. I've taken newer WH plants from my pond and let them float in one of my planted tanks but both times they died.
-I dose my planted tanks with dry ferts from gla (potassium nitrate, potassium sulfate, and potassium or sodium phosphate + trace elements) so I know the WH had adequate amounts of macro and micro nutrients. The other plants grow well.
-I had ~72 watts LED 460/660nm grow lights and ~46 watts 6,500k fluorescent over a 30 gallon tank which is pretty high. The lights were a few inches above the WH ... too far away to cause a heat problem.
-pH, KH, GH, and TDS of the tank water were virtually the same as the source (pond).
-Water temperature shouldn't have been an issue and the air temperature indoors is close to ideal for Water Hyacinth (68-72º).
I couldn't figure out why the WH wouldn't grow.
Post #28 in the thread below
duanes
states that he's found that WH simply doesn't do well under artificial light. That's the only explanation I can think of based on my experience.
https://www.monsterfishkeepers.com/forums/threads/good-plant-for-my-sump.683463/