I've noticed that when I don't clean the tank for about 2 weeks, these weird things appear in my tank. They're these weird clear slimy things with small white dots. It looks like a clear 7mm pond snail with white close (very close apart) dots. The dots are really small, maybe a diameter of 3/4mm. I also see them in my snail tank.
Does anyone know what they are? Are they good or bad for fish/RES/snails? They sometimes 'interact' with the snails.
Other questions/things:
Do all RES's try to catch prey? (I have rosy red minnows in my tank.)



