Originally Posted by madmonahan
I really want to see what this plastic fish looks like. ;)
I'm with you, can we get a picture? :)
All six of my boys live in divided 20 gallons, and they seem really sad when their tank mate moves to another tank for treatment or cleaning or something for a few days. I've noticed that when mine feel good they swim around and flare, but they stop when they're tired and will ignore each other. It doesn't seem to stress them at all, and instead seems to be an indicator of good health.
One of mine is *VERY* sensitive to any ammonia in his water (he was a rescue with serious burns, healthy now, but still very sensitive), and during cycling I could always tell when it was spiking, as he'd stop flaring at his tankmate. Even at very low ammonia levels, he was almost a better indicator of his water quality than the liquid test kit. :)