Pachus gone missing? & What to do with dear old Aphrodite

I recently noticed that Pachus one has not been accompanied by his dear friend, Pachus 2. I looked everywhere, filter and all and he is nowhere to be seen. I'm hoping I'll find him when I clean my tank again. Hopefully alive instead of dead. Eiosepa's fins started to improve, but within the last few days have they gotten even worse than at first! I just don't know what to do!! I suppose I could put a fish muzzle on her, so she can't bite those tempting long fins. But I can't sell Aphrodite! I can't. I like her, and there would be a hole in the tank without her! Well, Caligula has gotten huge! I might even have to sell him eventually too!!! Or (which is the solution that I like better) I could buy a bigger tank. In my dreams. Advice is welcome. I hope to keep you posted!!!