Water change... and hint for next time.

Performed a 2.5gal water change.

I realized afterwards that since the water's stored in garage, it's temperature was in the low 50's (F). I didn't check the temperature immediately before adding the water but during I glanced over - I'm guessing that it dropped about 3 (F) in the tank.

If I assume the tank was 77 (F), and do the math, it comes out to about 74.2 (F), although that doesn't take into account the heat capacity of the rock, glass, etc.

I'll have to remember for next time to allow the water to come to room temperature.

I also removed some of the brown algea, and moved a branch that has the last two stalks of Xenia on it against a rock. I think at least one piece will move over to the rock.