just an update with the beamswork for my 20g tall. my plants are still growing and pearling at the end of the day. i think the issue at fault is people aren't injecting co2 into their tanks to help the plants grow. overall the beamswork on my 20g tall is doing its job growing anubias nana, amazon sword, java fern, mosses, dwarf sags, crypts. but yea i believe any amount of light with the help of co2 will make plants grow.