do you have a pic or link to that thing?When I was setting up my overflow, I was thinking about using a critter keeper to make one. It's designed to keep crickets or transporting small animals in. I ended up buying a manufactured one, but I still think it might work. They make them in a few different sizes, and there cheep enough to cut up and experiment with.
i agree, im gonna play around with the gyre and see whats what. ill keep peeps posted in my threadI would point the powerhead or return to the surface a little to add some surface movement. A little film floating around is ok but the film should not stuck in one side.
Here is a picture of the one I keep my crickets in. I have a U pipe laying around if you need it.do you have a pic or link to that thing?