chadly

ahh i c. I guess for some reason I was thinkin the light wasn't making it to the back corners but that just might be the floaters blocking it out.

Guillermo

Yes, the lemna block the back more than the front, it's caused by the current of the filter. Now the Najas has grown and block some light too, these two plants are really invasive, I have to control them to allow my E. parvula to grow.