Favorite floating plants for reducing light?
I've had frogbit in a low tech 20 gallon long for several years and it's been great for providing shelter and shade, but after switching from an old T5 fixture to a nicrew LED one, the roots have started growing out of control. They never got this bad in this tank, but I did notice my newer tanks with LED fixtures had this same problem until I got fed up with trimming roots and removed it all.
Gonna try reducing brightness on the fixture and see if that helps, but if it doesn't and out of control roots continue to be an issue, I might want to switch to something else for surface cover in this tank.
So that brings us to the question: what are everyone's favorite floating plants for providing cover, spawning sites, shelter, etc?