I have a previously stable tank that has been up and running for about five years. I've not added any new fish for at least a year. Now my fish are dying off a few a day. Two two days ago, two yesterday, and five today.
I am aware that my tank is overstocked. I didn't realize it when I stocked...
I was posting about this back in 2011, just putting up some new pics I decided to take while drinking my morning coffee and admiring fish :)
So here they are! The 15-20 cherry barbs (and baby picture!), 13 harlequin rasboras, Cory, and blue dwarf gourami male!
Pictures in next post :)