06-29-2006, 09:00 AM
Join Date: Dec 2005
iTrader Positive Rating: 100%
Why not try both at separate times for a week, and test out which one works and gets better CO2 dissolution for you.
You're right about some algae build up on the diffusor, sometimes. What I've done, is hide it away from the lights, and under some leaves. That seemed to stop the algae from building up.