Okay well, I just put the breeding trap away and put the Java fern back where it was before. I then went to the washroom to wash the trap because it had some gravel and plant debris in it, and when I came back Aigis had 4 transparent spots on her fins. 2 on her tail fin, and two on her anal fin.
It's not a hole. The fins are still there, it's just that now it's transparent. Should I be worried?
One thing I noticed is that even though the other 3 get stress stripes, Aigis doesn't. Could the spots just be due to stress?