Day 63 Update (Jan. 31, 2013)
[First photo from day 58 for comparison]
Still tweaking CO2 injection with the in-line diffuser. No observable signs of CO2 toxicity but drop checker is way yellower than I want it to be.
Plant growth on the left side of the tank has increased since the new diffuser. Great buy :)
Sorry the lighting is different for the second pic… forgot to turn off my clone trooper lamp (you can spot a reflection of it if you look close enough on the second pic)