Low light plants not taking off in low tech setup

Hello,

I have a dirted 300 gallon setup. It's been up and running for about 6 years. I just did a hardscape rescape and decided to go with low light stuff like java fern, anubias, wendtii and bulbitus and dwarf sag. My goal is to have these plants accent the rocks and hardscape. I don't want to do a lot of trimming or maintenance. I also kept a couple of the large crinum natans I've had since the beginning. As a part of the rescape I ditched my compact fluorescent lights and went with (4) 48" Beamsworks 6500k leds (9 hours/day). The tank is 24" tall. I am dosing co2 (about a point drop in pH) along with a basic micro/macro mix. I drip 25 gpd of fresh water into the tank. I want to preface all of this with I appreciate any advice but I'm not the kind of guy that's going to check PAR or a bunch of other parameters. I'm not looking for the best display tank out there just a pleasant setup my family can enjoy that I don't need to put a ton of effort into. The crinum and java fern are growing and look great. The other plants are not. The anubias are the only others that are sprouting new leaves but even before they're developed they have algae on them. The dwarf sag is just filled with algae too and isn't growing. Is there any adjustment or indicator I can look at to get a bit better growth with these and cut back on the algae? Thanks in advance.

Here's a couple pics.

Number 2