I noticed when feeding late last night that one of my tropheus had large puffy eyes and was segregated from the rest of the colony. This morning, sadly, I fished out his body.
After testing the water this morning and observing the rest of the colony eating veraciously, the only reason i can determine is aggression.
My question is should i treat the colony with metro or is it better to hold off? i don't want to overuse metro in fear that it will lose it's effectiveness.
As stated the colony look fine, feed fine and the water quality is as it should be. It was just that single fish that showed symptoms.
Just checked my DMZ and it went out of date in May 2008....