u/Dwiightschrute3

Hi my plants use to grow well but after trimming they have not grown at all and seem to be dying, the only thing that grows is the green fuzz on some of the plants in last photo. I have giant ambulia dwarf hair grass and another plant I don’t know the name

My lightbar has 3 modes 2 of them darker with one bright which one should I use any advice appreciated thankyou