I use excel and flourish in a nano tank, but it kinda makes me nervous. I watch when a tetra swims through the cloud and goes insane. I'd be more comfortable with co2 on a timer at low dosage, but will definitely add this first. I was thinking it would be nearly useless until I added more light but guess not.
I know GLA is basically the standard in regulators and such, for a reliable regulator would you go with the atomic or one of their more traditional regulators? I already know I'm going inline difuser and 5lb tank, but much reading on reviews led me to these 2