lays tiny pearl-like eggs on the glass of the aquarium? We were thinking about dismantaling the tank, a 29 gal., because we've had all kinds of problems keeping the water suitable for them. The fish that are in there are all several years old. We have left a blue gourami (female), 3 neons, 3 red eye tetras, and 3 cory cats. Since the cats are most active I'm blaming them unless someone tells me different.