What could be worse than your worst algae problem
last night i found two pieces of orange peels lying on the substrate of my tank, among the plants. each about the size of my thumbnail. coincidentally, two of my rummynose tetra died that day earlier. I don't know if i can relate the two together. i asked around and it turns out that my in-law who's visiting us for a few months threw those in the tank just to see "if the fish would be interested".
I was like, erh, "... seriously?"