I found a cherry shrimp in my 37G tank this morning and quickly moved him into this tank so he doesn't get eaten by my Betta or Rams. It was a nice surprise.
DIY CO2 on this tank is rockin'. I need to turn it down because my drop checker is yellow. I am only using a 1L soda bottle with a jello mixture being diffused by a small in tank filter. I hardly see any bubbles so they must be getting chopped up pretty fine. I might go back to a ceramic diffuser if the drop checker doesn't go green real soon.