I think Fern has a very large, very severe tumor. :( You can keep her in epsom salts to help lessen any discomfort but otherwise, not much can be done. :( I'm sorry.
Olympia, hurray for new fishies! Sorry about the buffaloheads though. Those blockheads.
Sybil passed last night, thank goodness. I was going to euthanize her today using the ice water method if she hadn't gone. Mary and Edith seem to be doing fine with the unnamed betta girl so I'm just going to leave it like that for a while. Fortunately, betta girl can handle the strong current from the filter. But all the salvinia I put in stagnated because Sybil's cup blocked the filter flow. So it got tossed.