at slightly below 2 wpg you should be fine with no CO2 if you see algae issues either reduce photo period or add excel.
most of my tanks are at the 2wpg light scheme and none are running CO2.. I just started adding Excel as recommended by tom Barr.
this is mostly to add a bit of carbon and help keep hair algae at bay
currently it is only a light infestation of my tanks.
dwarf hairgrass is the only plant I see which may pose a problem.
most of my tanks are at the 2wpg light scheme and none are running CO2.. I just started adding Excel as recommended by tom Barr.
this is mostly to add a bit of carbon and help keep hair algae at bay
currently it is only a light infestation of my tanks.
dwarf hairgrass is the only plant I see which may pose a problem.