My fiance loves it when the snails do this. I have one in my 5g that scoots over to where the flow from the filter is and rides the current. I felt bad for it and moved him once and he went back to it again. :screwy:
My juvie brigs do this all the time. We call it riding the surface tension. Pretty neat, untill they get close to the HoB...then they sink like a rock. I also wonder if this isn't a type of "funnel feeding". I believe, at least briggs, will go to the water surface and create a funnel to catch protiens and foods that are floating. They then dip their mouth into the funnel and eat up.
My fiance loves it when the snails do this. I have one in my 5g that scoots over to where the flow from the filter is and rides the current. I felt bad for it and moved him once and he went back to it again. :screwy: