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I spent a few weeks in the field near Leticia, Colombia back in November 2021 for my dissertation research and we caught a few species of Apistogramma that I need help identifying if possible.
We'll be going back at the end of the month, so it would be good to have an ID if we catch...
Any update on what has happened to the spreading blackness?
I don't think that it is a stroke or a genetic weakness.
I have a 55gal planted community tank with a pair of angels, cardinal and emperor tetras and some A. mcmasteri "red-neck". Several months ago I noticed a weird black spot appear...