cgcaver
Aquarium Advice Regular
I know there's probably a difference between using a C02 diffusor, and simply sticking the hose in the intake for a power filter (HOB) - but how much difference are we talking here? Is it worth the $50 for a diffusor?? It seems like the filter impeller and spillway would do a pretty good job of mixing the CO2 into the water... am I way off base here?