Hey guys, hoping someone can positively ID this plant for me. Sorry about the brown algae.
As you can see, all of the bright green/large leaves have grown directly proceeding the addition of CO2- This is the shortest stalk- on the taller ones the difference in color and size is very very pronounced.
Anyone know what this is? I think it might be Hygrophila but it doesn't look quite like the pics of healthy plants I've seen.