how thick is the algae? certain kinds of algaes produce bubbles of oxygen that get trapped in their vegetative matrix,
Otherwise it's likely just micro-bubbles getting stuck to the irregular surface the algae creates on the glass.
ETA: It's unlikely that the bubbles are oxygen that's precipitated out. Even at 100% saturation I don't think that happens. the bubbles are either coming from your water column and collecting on the glass, or they're being produced by the algae. Wass there a noticeable increase in the number of micro-bubbles in the water with the new skimmer?
Last edited by asylumdown; 04-01-2011 at 06:46 AM.
|