fresh water skimmer

[X-Treme]

Originally Posted by kwirky

i read of somone once using a protein skimmer as an aerater in their planted aquarium at night, because the fish and the plants together output crazy ammounts of CO2 if it's heavily stocked...

Ummmm....not AT ALL true. Plants NEVER EVER output CO2. They USE CO2 to create O2, however with no light, there is no photosynthesis, therefore no O2 output from plants.