BTW... to fight some of that BBA I see in there, you can use some H2O2. About 3mL/gallon has worked out safely for me, though, you may want to use less since you have some more sensitive plants in there.
EDIT:
And you'll want to spot-treat it, so turn off your filters and let the hydrogen peroxide work it's magic. My fish generally love swimming through the bubbles.
I do my treating before a WC.