If you watch the silver aro closely, you can clearly see all the work and eye movement involved as it lines up the food fish and has to judge distance, anticipate movement and distinguish the prey apart from the clear tank sides. The eyeballs dart back and forth repeatedly before it attempts a strike. I never noticed this as much until now. Perhaps the drop eye is more prevalent in tanks not because of looking down but because it has to try to guess distances away from CLEAR glass sides??
Sorry to derail....
Sorry to derail....
